OOIR: Observatory of International Research

Papers

(The TQCC of International Journal of RF and Microwave Computer-Aided Engineering is 3. The table below lists those papers that are above that threshold based on CrossRef citation counts [max. 250 papers]. The publications cover those that have been published in the past four years, i.e., from 2021-11-01 to 2025-11-01.)

Article	Citations
An orbital angular momentum vortex wave antenna with low in‐band radar cross section and reduced divergence angle	28
A hemispherical near‐field focusing antenna for non‐metallic delamination detection	24
Issue Information	23
An Efficient Geometric Parameter Optimization Method for Microstrip Bandpass Filter Based on One‐Dimensional Convolutional Neural Network	21
Deep Learning for Inverse Design of Broadband Quasi-Yagi Antenna	19
A micromachined ultra‐wide stopband lowpass filter based on stepped impedance resonator loaded T‐shaped structure	18
Optimization of ANN ‐based models and its EM co‐simulation for printed RF devices	18
A height‐reduction antenna with simple structure for base station	18
Beam steering patch antennas using reconfigurable parasitic elements of tunable electrical size	17
Compact Millimeter-Wave Antenna Array with Low Sidelobe Level for Vital Sign Monitoring Application	17
Wide‐bandwidth and tunable PIFAs under dual‐resonance modes	16
Low‐profile wideband 8‐antenna array design for 5G smartphone application	16
Fractal loaded six element multiple‐input‐multiple‐output antenna configuration for super wideband operation	16
A novel dual‐band slot‐ring array antenna using both‐sided MIC technology for polarization detection	16
Hybrid lumped‐distributed loading design approach to wideband dual‐mode resonant monopole antennas	16
Dual‐polarized patch antenna array with hemispherical beam coverage	15
Miniaturized wideband dual‐polarized microstrip patch antenna with improved radiation performance	14
A Dual-Band Low SAR Microstrip Patch Antenna with Jean Substrate for WBAN Applications	14
Active frequency selective surface with switchable response for satellite communications in X and Ka bands	13
Miniaturized High‐Performance Metasurface Antenna Embedded in Cross‐Shaped Strips	13
A Multifunctionality Reconfigurable HMSIW Filter by Using EBG Structure and Diodes for C/X-Band Application	12
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A Low-Scattering Antenna Array at Both Normal and Grazing Incidence	12
A 2 × 2 planar array of Clover‐leaf shaped printed antennas for weather‐monitoring based applications	12
Dual‐band dual‐polarized transmitarray with independent control of polarization at each band	11

A Flexible Multiband Dendritic Structure Fractal Antenna for 4G/5G/WLAN/Bluetooth Applications	11
Dual circularly polarized semi‐cylindrical hybrid dielectric resonator antenna for X and Ku ‐band applications	11
8‐12 GHz single‐input GaN load modulated balanced amplifier monolithic microwave integrated circuit	11
Modeling of heterojunction bipolar transistors based on novel Wiener‐type dynamic neural network	11
Single‐step algorithm for the cascade assembly of multiple S‐parameters based multiports networks	10
Wideband dual‐polarized wide solid angle scanning cylindrically conformal millimeter‐wave phased array	10
Dual‐band polarization‐insensitive orbital angular momentum beam generation based on 1‐bit polarization‐converting transmitting coding metasur	10
Bandstop filtering for integrated substrate gap waveguide high‐gain and wideband slot antenna for 5G	10
A high selectivity planar filtering quasi‐Yagi antenna	10
An ultra‐wideband dual‐band hybrid frequency‐selective rasorber	10
Design of Hybrid Bandpass Filter Chips with High Selectivity and Wideband Using IPD and FBAR Technology	9
A 1‐bit reconfigurable metasurface antenna for ground penetrating radar application	9
Design of low‐specific absorption rate sticker using electric‐field components optimization	9
Directional and isolated UWB‐MIMO antenna‐based uniplanar UWB‐FSS array and T‐strip for bi‐static microwave imaging: <	9
Compact broadband circularly polarized slot antenna with artificial magnetic conductor reflector	9
Millimeter-Wave Broadband MIMO Antenna Using Metasurfaces for 5G Cellular Networks	9
Issue Information	9
Design of dual‐band balanced bandpass filter based on a single substrate integrated waveguide cavity	9
Compact CPW‐fed ultra‐wideband ‐MIMO antenna with quad‐band notched characteristics	9
Design of broadband reconfigurable phase shifters	9
A decoupling structure without sacrificing antenna‐element performance for 5G smartphone designs	9
Multilayer perceptron–random forest based hybrid machine learning–neural network model for GaN high electron mobility transistor's parameter estimations	8
Investigation on temperature stability ofMEMSsilicon‐based sixth‐order stripline filter	8
Numerical Analysis of Therapeutic Effects by Varying Slot Numbers and Slot‐to‐Slot Distance in Microwave Ablation Using Multislot Coaxial Antenna	8
Dual‐Band MIMO Dipole With Integrated Balun and Optimized Algorithm‐Based Decoupling Structure	8
A Wideband, Sharp Roll‐Off U‐Band Diplexer in Suspended Stripline Technology	8
Filtering power divider with improved isolation bandwidth using frequency‐varying network	8
Modeling of spatial permittivity variations using Karhunen–Loève expansion for stochastic electromagnetic problems	8
Compact tunable filtering balun with stable stopband using varactor‐loaded coupled‐line‐loaded hairpin ring resonator	8
Design of SIW‐Based Compact and High‐Gain Filtenna Array for W‐Band	8
A band‐stop filter based on spoof surface plasmon polaritons using complementary split‐ring resonators	8
A dual‐band filtering structure for highly selective reconfigurable bandpass filter and filtering balun	8
Conical annular patch antenna for dual band operation on airborne vehicles	8
Manifold Frequency Division Multiplexer With Narrowband SIW–SSPP Hybrid Filters	8
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Evolutionary Algorithm-Inspired Binary Sequence-Based Hybrid Fault Detection Method for Nonuniformly Excited Linear Antenna Array	8
Multiobjective Particle Swarm Optimization to Design the Top Load of a Very Low Frequency Thirteen-Tower Umbrella Antenna	7
Simultaneous flattening of amplitude and group delay responses in narrowband bandpass filters using a novel systematic design method	7
Reconfigurable negative group delay circuit with tunable group delay flatness	7
Millimeter‐wave frequency reconfigurable antenna using simple VO ₂ ‐based p	7
360° angular coverage pattern and polarization diversities wideband circularly polarized multiple input multiple output antennas	7
Interconnect reliability investigation for a high power GaN MMIC PA based on APDL	7
Electromagnetic beam scattering of the anisotropic medium cylinder	7
A compact filtering power divider with low‐pass response and wide harmonic suppression	7
A novel dual‐band highly efficient power amplifier for 5G applications	7
Using a hybrid encoding method based on the hexagonal resonators to increase the coding capacity of chipless RFID tags	7
Parallel body‐shaping of electrically large objects described by NURBS surfaces	7
Design of broadband electromagnetically coupled planar antenna and array for 60 GHz millimeter wave applications	7
A miniaturized mm‐wave leaky wave antenna based on CRLH slow‐wave SIW for symmetric wide angle beam scanning	6
Miniaturized dual‐band ridged substrate integrated waveguide cavity resonator and band‐pass filters	6

A Lumped-Element Directional Coupler for Bandwidth Enhancement, Impedance Matching, and Harmonic Suppressions	6
A High Gain Vivaldi Antenna with Multiple Near-Field Dielectric Lenses and Grooved Edges	6
A low profile wideband horizontally polarized omnidirectional printed loop antenna	6
A frequency reconfigurable high‐order mode monopole antenna with two independently controlled band	6
Integrated dual‐band multiple‐input multiple‐output antenna module using higher mode control for 5G applications	6
Research on temperature uniformity optimization of microwave heating Debye media based on MDADT	6
A Collaborative Control Method of Transmission Amplitude and Phase for Transmitarray Antenna Design	6
Threat detection with millimeter wave conformal antenna array using beamforming and direction of arrival estimation	6
Beam‐steering orbit angular momentum vortex waves by mechanically rotating transmitarray	6
Implanted Rhombus Ring Partial Inset-Fed Circularly Polarized Microstrip Monopole Antenna for WBAN Applications	6
High-Temperature Measurement Technology for Microwave Surface Resistance of Metal Materials	6
Single‐Layer Quadruple‐Frequency Dual‐Mode Circularly Polarized All‐Textile Wearable Antenna	6
Wideband and miniaturized lumped‐element low temperature co‐fired ceramic filter Using size reduced resonators for very high frequency applications	6
CSIWC RFsensor for micro‐fluidicnon‐contactquality assessment of milk	6
Channel measurements and propagation characterization for indoor terahertz communication	6
Point focusing wireless communication: A diffraction limit communication paradigm	6
Design and implementation of a compact tri‐band four‐port multiple‐input‐multiple‐output antenna	6
Compact flexible and reconfigurable antenna using screen‐printed vanadium dioxide switch for wireless local area network and	6
Conformal MIMO circular polarization diversity antenna for V2X applications	6
A 24‐GHz active up/down bidirectional mixer in 130‐nm RF CMOS	6
Open-Circuit Fault Detection in a Single Conductor Transmission Line Using TM0 Mode Launcher	6
A 3D printed bullet‐shaped filter based on zero‐gap circular waveguide cavities	6
Substrate integrated coaxial line design for mmWave antenna with multilayer configuration	6
A single cavity wideband passband filter with a notched band	5
Digital predistortion based on sample selection with memory effect	5
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A novel dual‐band balanced‐to‐single‐ended in‐phase filtering power divider based on slotted circular patch resonator	5
Three‐dimensional modified dipole structure with reduced resonant frequency	5
Ahigh‐gainminiaturizedhalf‐modesubstrate integrated waveguide leaky wave antenna with integrated phase inverter	5
A single‐layer high‐isolation multiple‐input‐multiple‐output antenna for millimeter wave applications	5
Improved convolutional perfectly matched layer with auxiliary differential equation for the weakly conditionally stable finite‐difference time‐domain method	5
Miniaturized reconfigurable dielectric resonator antenna array with reduced beam squinting	5
Miniaturized Ss‐Shaped CP Circular Patch Antenna Design for Implantable Medical Device Applications	5
Conformal multiple input multiple output antenna array for wireless avionics intra‐communications system in aircraft cabin	5
Dual‐band double circularly polarized wide‐angle beam‐scanning antenna using planar phase gradient transmitarrays	5
Physics‐Informed Extreme Learning Machine Applied for Eigenmode Analysis of Waveguides and Transmission Lines	5
Issue Information	5
A quad‐band defected microstrip structure loaded bandpass filter for standard GPS , WiFi ,	5
A wideband planar pattern reconfigurable antenna for IEEE 802.11ac WLAN applications	5
Power Efficiency Improvement for Dual–Dielectric Resonator Oscillators	5
A broadband dual‐polarized antenna with quasi‐trapezoidal patches for 5G base station application	5
BNN‐LSTM‐DE Surrogate Model–Assisted Antenna Optimization Method Based on Data Selection	5
Rigorous analysis of cross metallic absorber for terahertz detector	5
Broadband circularly polarized tapered dipole antenna for GNSS applications	5
Ten‐port multiple input multiple output antenna for 4G/5G mobile phone applications	5
A tri‐band shared‐aperture antenna combining two sub‐6G and one millimeter‐wave bands with shar	5
Asymmetric Coplanar Strip- (ACS-) Fed Side Edge Panel MIMO Antenna for IoT and 5G Applications	5
Hybrid topology optimization of dual‐polarized wide‐beam antenna and its application in wide‐angle scanning array	5
Ultrawide band cage dipole antenna for ultra high frequency band ground penetrating radar system	5
Coplanar waveguide fed ultra‐wideband multiple‐input multiple‐output slot antenna with connected ground and high isolation for internet of things and wireless body area network applications	5
A Spaceborne Ka‐Band Earth‐Coverage Phased Array Antenna Based on DBF‐Shared Subarray for LEO Communications	5
Fast prediction of the shielding effectiveness of heterotypic enclosures based on EMT theory	5
Design of balanced UWB BPF based on quint‐mode slotline resonator	5
A 3 dB SISL coupler design by multi‐objective evolutionary algorithm based on decomposition	5
Issue Information	5
Design of an omnidirectional transmit/receive antenna pair using mushroom‐like electromagnetic band‐gap structure	5
Broadband polarization insensitive wide angular stable dual‐split square ring circuit analog absorber for radar cross section and electromagnetic interference shielding applications	4
Quad‐band circularly polarized super‐wideband MIMO antenna for wireless applications	4
Optimized coil turns of receiving ferrite core antenna for wireless magnetic inductive communication	4
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A compact triple band circular polarized slotted microstrip patch antenna with low frequency ratio	4
Design of Triple‐Band Slotted Planar Antenna for WLAN/WiMAX and 5G Applications	4
Circularly polarized microstrip antenna with electrically large property by using tilted periodical I‐shaped resonant inclusions	4
Data Transmission System With High Data Rate for SDGSAT‐1 Small Satellite	4
Wide‐stopband substrate‐integrated waveguide diplexers and dual‐band bandpass filter with large frequency ratios	4
A Wide-Angle Scanning Planar Array Based on Four-Mode Pattern-Reconfigurable Elements	4
Compact Dual‐Band Band‐Pass Filter Using Single Multimode SIW Cavity With Independent Controllable Fractional Bandwidth	4
A broadband loose coupling coupler with discrete structure and hybrid binary particle swarm genetic optimization algorithm	4
AnEH₂‐mode microstrip leaky‐wave antenna with single beam radiation and backward‐to‐forward scanning	4
High‐gain UWB antenna with optimized metamaterial lens layer via particle swarm optimization algorithm for satellite communication applications	4
A metamaterial‐based compact multiple‐input multiple‐output antenna with pattern diversity	4
Knowledge‐Based Methodology of CPW‐Fed Open Stub Loaded C‐Shaped Microstrip Antenna by Surrogate‐Based Modeling	4
High‐gain phase‐gradient metasurface lens antenna for 5.5–6.5 GHz with back cavity	4
Metasurface‐enabled isolation between antenna arrays	4
C/ X‐Band sub‐harmonic mixer using single oscillator and its design flow	4
A compact wideband dual‐polarized magnetoelectric dipole antenna	4
Planarized quasi‐self‐complementary antenna design with ground‐cooperative radiating for mobile terminal applications	4
High Gain Millimeter-Wave Transmitarray Antenna Based on Asymmetric U-Shaped Metasurface Using Characteristic Mode Analysis	4
3-D Printed Circularly Polarized Open-Ended Waveguide Antenna Array Based on an In-Built Antipodal Exponential Groove Polarizer	4
Bandpass leapfrog hybrid implicit–explicit procedure with promoted absorption for obtaining fine geometry in a single direction	4

Backfire Patch Antenna with Enhanced Gain and Low Side-Lobe Level under Triple-Mode Resonance	4
An ultra‐wideband 3 × 3 Butler matrix with unique Vivaldi array structure for high‐range resolution radars	4
Constant False Alarm Detection Algorithm Based on KL Scattering	4
2–18 GHz balanced antipodal Vivaldi conformal phased array antenna with resistive load and shorting posts	4
Performance enhancement of an ultra‐wideband antenna using a compact topology optimized single frequency selective surface‐layer a	4
A dual wideband high gain 2 × 2 multiple‐input‐multiple‐output monopole antenna with an end‐launch connector model for 5G millimeter‐wave mobile applications	4
A wideband circularly polarized monopole antenna with elliptic ring slot patch using characteristic mode analysis	4
Design of wideband 4 × 4 Nolen matrix using m ultistub loaded phase shifters	4
A low‐profile compact UWB antenna array for sub‐6 GHz MIMO applications in 5G metal‐frame smar	4
Compact waveguide‐based corporate‐fed array antenna with wideband and high‐gain performance in E‐band	4
A diamond NV centers‐based magnetic field sensor using a high‐Q waveguide bandpass filter	4
Novel broadband angular stable linear‐circular and linear‐cross polarizer based on inductive grid loaded H‐dipole in both reflection and transmission modes	4
Substrate integrated waveguide‐based simultaneous transmit and receive antenna for full‐duplex wearable devices	4
Design of multimode broadband circularly polarized antenna using characteristics mode analysis	4
A Review of Over-the-Air Testing Methods for Performance Measurement of Antennas and Devices in Communication Systems	4
Compact low‐profile metasurface antenna via non‐uniform fractional meta‐cells with an e ‐TM ₃₀	4
End‐to‐end inverse modeling and optimization for filters based on artificial neural network	4
A high‐precision and fast off‐line beamforming pattern estimation technique for active phased array antenna application	4
Development of a Broadband and High-Gain Circularly Polarized Array of Multilayer Slot Antennas for X-Band Wireless Communication Networks	4
A single‐layer dual‐polarization transmission metasurface for multi‐feeds and multi‐focus	4
Development of a New Equivalent Circuit of DGS with Ideal Transformer	4
Direct synthesis for sequential networks with an arbitrary number of outputs	4
Transmission‐type 1‐bit coding metasurfaces with linear‐to‐circular polarization conversion using coupling‐propagation‐decoupling unit cells	4
A novel miniaturizedX‐bandcoplanar waveguidebranch‐linecoupler using T‐ and ????‐type equivalent transmission lines	4
A linear tightly coupled dipole array with wide‐angle scanning	4
Low‐profilecomplementary dipole antenna under quadruple mode resonance with nearly equal E‐ andH‐planepatterns	4
A new extraction flow of the s mall‐signal s witch‐HEMT model based on the parasitic resistance scanning algorithm	4
A Miniaturized Low-Loss Switchable Single- and Dual-Band Bandpass Filter	4
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A wideband MIMO antenna with high isolation for 5G application	3
Design and Development of Parasitic Elements Loaded Quadband Frequency and Pattern Reconfigurable Antenna	3
Addressing dynamics in radio frequency tomography	3
A novel MS to SL vialess vertical transition for high‐performance substrate integrated filter	3
A compact radio frequency identification tag antenna with loaded coupling rings for two‐side anti‐metal design	3
Novel method for reshaping TM ₀₀ mode radiation patterns of rectangular patch antenna by using characteristic mo	3
Design of quad‐element MIMO antenna with a multi‐functional ground topology for UWB wireless applications	3
Metamaterial‐based frequency reconfigurable microstrip antenna for wideband and improved gain performance	3
Design and Implementation of a Novel Radar Cross Section Reduction Metasurface Covering 12.5-17.4 GHz and 20.5-36.2 GHz	3
A novel and efficient impedance matching technique based on fragment discrete structure and genetic algorithm	3
A Learning‐Based Variational Backpropagation Method for Inverse Scattering Problems	3
Subtractive Clustering–Assisted Surrogate Model to Fast Optimal Design of Traveling Wave Tubes	3
Artificial bee colony algorithm based modified circular‐shaped compact hybrid fractal antenna for industrial, scientific, and medical band applications	3
RPM ‐loaded compact dual‐band circularly polarized antenna for GNSS application	3
Design of Rocket‐Borne Data Transmission System for Sounding Rocket	3
Research on high‐efficiency optimization algorithm applied to near‐field effect error correction	3
Miniaturized Quadband High-Temperature Superconducting Bandpass Filter with a Wide Frequency Ratio	3
A new wideband filtering power divider with ultra‐wide stopband using microstrip/slotline transitions	3
A novel broadband l inear‐cross and l inear‐circular reflective polarizer based on interdigital capacitance loaded dipole for	3
Design of a compact multifunctional power divider loaded with short‐ended stub	3
Suppression of cross‐band scattering effect of shared‐aperture base station antenna by using sparse FSS	3
An injection molded circularly polarized endfire multibeam antenna with wide axial ratio beamwidth coverage using rhombic waveguide element	3
An SISL dual‐band filtering antenna with parasitic strips for 5G applications	3
A substrate integrated waveguide based dual‐band leaky‐wave antenna fed by TE ₁₀	3
A Novel Broadband ± 45° Dual-Polarized Cross-Dipole Antenna with Multimode R	3
A circularly polarized meander loop antenna for unmanned aerial vehicle satellite navigation system	3
Wide E-Plane Beamwidth Microstrip Patch Antenna Using H-Shaped Gap-Coupling with Three Parasitic Patches for the K-Band	3
Simultaneous matching, decoupling, and miniaturization in MIMO antenna by loading a folded cross resonator	3
Single‐layer dipole antenna with large angle beam deflection and frequency scanning capability	3
Design of low phase noise K‐band VCO using high quality factor resonator in 0.18 μm CMOS technology	3
A scanning beam antenna fed by a 7 × 8 Butler matrix for 5G applications	3
Subgigawatt Level X‐Band BWO Using Adiabatically Tapered SWS at Low Magnetic Field	3
Design of a broadband ultra‐thin metamaterial absorber with G‐type bent structure	3
Compact Slot Microstrip Patch Antenna Loaded with Open Metal Cavity for Microwave Hyperthermia	3
A circular‐polarized and high‐gain microwave correlation imaging antenna based on rotating elements	3
3D ‐printed reflector antenna and metallization in Ka‐band	3
Design of a metasurface filtering antenna with tunable radiation nulls	3
An ultra‐wideband polarization insensitive frequency selective surface for shielding applications	3
Abeam‐formed leaky‐waveantenna array withpower‐recyclingfeeding network	3
Design of Artificial Metamaterial Absorber Based on Stacking Method	3
L _G 55 nm T‐gate InGaN / GaN channel based high electron mobility transistors<	3
Design and analysis of dual‐band FSS based on equivalent circuit	3
A broadband compact filtering antenna forsub‐6 GHzbase station applications	3
Broadband dual‐band bandstop filters based on step‐impedance stubs and transmission‐line networks	3
Design of a broadband high‐efficiency power amplifier through mixed strategy	3
Broadband radar cross‐section reduction using random chessboard coding metasurface	3
Angular Stability Enhancement Using Phase Compensation Method for Frequency Selective Surface Design	3
Wideband, polarization independent electromagnetic wave absorber using cross arrow resonator and lumped SMD resistors for C and X band applications	3
Electronically beam switched conformal microstrip array antenna for 5G applications	3
A flexible low insertion‐loss wideband millimeter‐wave crossover based on ridge gap waveguide technology	3
A high gain reduced side‐lobe miniaturized frequency and pattern reconfigurable planar array operating in higher‐order mode	3
A Compact Ultralow‐Profile Wideband and High‐Efficiency Folded Transmitarray	3
A self‐packaged SCPW negative group delay circuit and its integration with power divider	3
Design of Filtering Coupler Based on Patch Resonator with High Selectivity	3
Corrigendum to “Compact Millimeter‐Wave Antenna Array With Low Sidelobe Level for Vital Sign Monitoring Application”	3
Estimation of QoT in an Operational WDM Transmission System Using Artificial Neural Networks With Deep SHAP and Kernel SHAP Algorithms	3
Inductively coupled triple layers of ultra‐miniaturized frequency selective surface for L‐band applications	3
Design and Characterization of a Compact Four-Element Microstrip Array Antenna for WiFi-5/6 Routers	3
Research on the characteristics and equivalent circuits of left‐handed materials with the same manifestation	3
Issue Information	3
Multi resonant slot antenna design to radiate fan‐shaped multi‐beam radiation pattern with the use of two‐dimensional perforated Luneburg lens	3
A Dual-Band Dual-Output Filtering Power Amplifier Based on High-Selectivity Filtering Impedance Transformer	3
Norman window slot antenna with sectoral feed backed by linear phase reflector for ultra wideband applications	3
Ultra‐wide bandgap Al _0. ₁ Ga ₀ _.	3
Compact Multilayered Bandpass Filter With High Selectivity and Four Transmission Zeros Using a Feedback Capacitor	3
Systematic Analysis of Rotated Dual-Split Elliptical SRR with Band-Stop Characteristics	3