8 × 8 Ka-Band Dual-Polarized Array Antenna based on Gap Waveguide Technology

—This paper describes an 8 × 8 fully-metallic high- efficiency dual-polarized array antenna working at Ka-band, based on Gap Waveguide concept. The radiating element is a cir- cular aperture backed by two stacked cylindrical cavities, which are fed orthogonally to achieve a dual-polarized performance. Both feeding layers consist of a gap waveguide corporate network to reach all the cavities backing each radiating element. Cavities are naturally integrated within the bed of nails hosting grooves and ridges for guiding EM field, leading to a low-profile dual- polarized array in Ka-band. Experimental results present good agreement with simulations. Measured radiation patterns agree well with simulation and the antenna provides an average gain over 27 dBi within its operating bandwidth (29.5 to 31 GHz).

[1]  Thierry Monediere,et al.  A Large Antenna Array for Ka-Band Satcom-on-the-Move Applications—Accurate Modeling and Experimental Characterization , 2018, IEEE Transactions on Antennas and Propagation.

[2]  Miguel Ferrando-Rocher,et al.  Single-Layer Circularly-Polarized $Ka$ -Band Antenna Using Gap Waveguide Technology , 2018, IEEE Transactions on Antennas and Propagation.

[3]  Arne F. Jacob,et al.  K/Ka-band dual-polarized SIW-fed lens antennas for Rx/Tx integration , 2018, International Journal of Microwave and Wireless Technologies.

[4]  Manuel Arrebola,et al.  Dual-Polarization Ku-Band Compact Spaceborne Antenna Based on Dual-Reflectarray Optics † , 2018, Sensors.

[5]  Qi Luo,et al.  Low-Cost X/Ku/Ka-Band Dual-Polarized Array With Shared Aperture , 2017, IEEE Transactions on Antennas and Propagation.

[6]  Ashraf Uz Zaman,et al.  60-GHz Groove Gap Waveguide Based Wideband $H$ -Plane Power Dividers and Transitions: For Use in High-Gain Slot Array Antenna , 2017, IEEE Transactions on Microwave Theory and Techniques.

[7]  Mariano Barba,et al.  Dual Polarized Reflectarray Transmit Antenna for Operation in Ku- and Ka-Bands With Independent Feeds , 2017, IEEE Transactions on Antennas and Propagation.

[8]  Miguel Ferrando-Rocher,et al.  New feeding network topologies for high-gain single-layer slot array antennas using gap waveguide concept , 2017, 2017 11th European Conference on Antennas and Propagation (EUCAP).

[9]  Jian Yang,et al.  A dual-polarized slotted-waveguide antenna based on gap waveguide technology , 2017, 2017 11th European Conference on Antennas and Propagation (EUCAP).

[10]  Andrea Neto,et al.  A Dual-Polarized Leaky Lens Antenna for Wideband Focal Plane Arrays , 2016, IEEE Transactions on Antennas and Propagation.

[11]  Ashraf Uz Zaman,et al.  Design and Fabrication of a High-Gain 60-GHz Corrugated Slot Antenna Array With Ridge Gap Waveguide Distribution Layer , 2016, IEEE Transactions on Antennas and Propagation.

[12]  A. Valero-Nogueira,et al.  Groove Gap Waveguides: A contactless solution for multilayer slotted-waveguide array antenna assembly , 2016, 2016 10th European Conference on Antennas and Propagation (EuCAP).

[13]  Hector Fenech,et al.  High throughput satellite systems: An analytical approach , 2015, IEEE Transactions on Aerospace and Electronic Systems.

[14]  O. Litschke,et al.  Planar phased array antenna for nomadic satellite communication in Ka-Band , 2014, 2014 44th European Microwave Conference.

[15]  Linda M. Davis,et al.  Dual Polarization Frequency Reuse in SATCOM: A Method to Counter Poor Cross-Polar Isolation , 2014, 2014 IEEE Military Communications Conference.

[16]  Dongjin Kim,et al.  Design and Fabrication of a Dual-Polarization Waveguide Slot Array Antenna With High Isolation and High Antenna Efficiency for the 60 GHz Band , 2014, IEEE Transactions on Antennas and Propagation.

[17]  Alessandro Galli,et al.  Low‐cost dual‐polarized printed antenna for multifunction phased‐array radar , 2012 .

[18]  M Kamyab,et al.  Single-Feed Dual-Band Dual-Linearly-Polarized Proximity-Coupled Patch Antenna , 2011, IEEE Antennas and Propagation Magazine.

[19]  M. Arrebola,et al.  Dual-Polarization Dual-Coverage Reflectarray for Space Applications , 2006, IEEE Transactions on Antennas and Propagation.

[20]  O. Breinbjerg,et al.  An L-band, circularly polarized, dual-feed, cavity-backed annular slot antenna with wide-angle coverage , 2006, 2006 IEEE Antennas and Propagation Society International Symposium.

[21]  Hon Ching Moy-Li,et al.  Dual-polarized Frequency Selective Surface for SOTM applications , 2018 .

[22]  L. Shafai,et al.  Compact Dual Circularly Polarized Primary Feeds for Symmetric Parabolic Reflector Antennas , 2016, IEEE Antennas and Wireless Propagation Letters.