Abstract:
This article presents a novel continuous transverse stub (CTS) array antenna based on gap waveguide (GW) technology, where all components are integrated within a multiple...Show MoreMetadata
Abstract:
This article presents a novel continuous transverse stub (CTS) array antenna based on gap waveguide (GW) technology, where all components are integrated within a multiple-layer stacked parallel plate GW (PPGW). Furthermore, a stepped pin electromagnetic band gap (EBG) unit is proposed to enable low-loss interconnection of stacked PPGW, thereby enhancing the bandwidth and efficiency of the entire array. This architecture offers a simple assembly solution for all-metal cooperate-feed CTS arrays. For experimental verification, a W-band 32-slot CTS array is designed based on the proposed architecture. Low sidelobe level (SLL) in both E- and H-planes is attained through the combined utilization of a nonuniform cooperate-feed network and pillbox beamformers. A prototype is manufactured and tested to validate its performance. The measured impedance bandwidth covers the entire W-Band (75–110 GHz, 37.8%), and the measured peak gain is 32.3 dBi at 110 GHz. SLL in both E- and H-planes remains below −18.5 dB across the entire operating band. Furthermore, the mean radiation efficiency stands at 76.3%. The proposed architecture and design methodology are well-suited for broadband, high-efficiency, and large-scale array antennas at a low cost, which particularly appeals to upper millimeter-wave applications.
Published in: IEEE Transactions on Antennas and Propagation ( Volume: 72, Issue: 6, June 2024)
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- IEEE Keywords
- Index Terms
- Gap Waveguide ,
- Continuous Transverse Stub ,
- Low Cost ,
- Beamforming ,
- Antenna Array ,
- Sidelobe Level ,
- Entire Band ,
- Pillbox ,
- Large-scale Array ,
- Low Sidelobe ,
- Low Sidelobe Level ,
- Building Blocks ,
- Excellent Performance ,
- Power Distribution ,
- Reflection Coefficient ,
- Transmission Line ,
- Printed Circuit Board ,
- Radiation Pattern ,
- Power Divider ,
- Wide Bandwidth ,
- Substrate Integrated Waveguide ,
- Aperture Efficiency ,
- Broad Bandwidth ,
- Layer 2 5 ,
- Energy Leakage ,
- Simulated Reflection Coefficient ,
- Fabrication Tolerance ,
- dB Level ,
- Conventional Array ,
- Computer Numerical Control
- Author Keywords
Keywords assist with retrieval of results and provide a means to discovering other relevant content. Learn more.
- IEEE Keywords
- Index Terms
- Gap Waveguide ,
- Continuous Transverse Stub ,
- Low Cost ,
- Beamforming ,
- Antenna Array ,
- Sidelobe Level ,
- Entire Band ,
- Pillbox ,
- Large-scale Array ,
- Low Sidelobe ,
- Low Sidelobe Level ,
- Building Blocks ,
- Excellent Performance ,
- Power Distribution ,
- Reflection Coefficient ,
- Transmission Line ,
- Printed Circuit Board ,
- Radiation Pattern ,
- Power Divider ,
- Wide Bandwidth ,
- Substrate Integrated Waveguide ,
- Aperture Efficiency ,
- Broad Bandwidth ,
- Layer 2 5 ,
- Energy Leakage ,
- Simulated Reflection Coefficient ,
- Fabrication Tolerance ,
- dB Level ,
- Conventional Array ,
- Computer Numerical Control
- Author Keywords