Orthogonal Polarized Horn Antenna with High Port Isolation at Ka-Band

Kunooru, Bharath; Vahini, Srujana; Dasari, Rama Krishna; Pandharipande, V.M.

doi:10.1109/lamc50424.2021.9602595

Cited by 1 publication

(2 citation statements)

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“…1,2 Horn antennas with dual polarization at mm-wave frequency have been widely studied as a kind of feed element for reflector antennas. 3 Dual-polarization antennas can collect more multidimensional data, resulting in better target identification and interference rejection, which, in turn, enhances the stability and channel capacity of the wireless links. When using two orthogonal polarizations of an antenna, the cross-polarization level should always be low, and consequently, to avoid more cross-polarization, the isolation should be high.…”

Section: Introductionmentioning

confidence: 99%

“…Reflector antennas with dual polarization at millimeter‐wave (mm‐wave) frequencies are used in numerous applications such as satellite, radio astronomy, radar and especially in cloud radar and monopulse tracking radar, because they have narrow beamwidth, high gain and are capable of receiving two orthogonal signals 1,2 . Horn antennas with dual polarization at mm‐wave frequency have been widely studied as a kind of feed element for reflector antennas 3 . Dual‐polarization antennas can collect more multidimensional data, resulting in better target identification and interference rejection, which, in turn, enhances the stability and channel capacity of the wireless links.…”

Section: Introductionmentioning

confidence: 99%

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Three‐dimensional‐printed dual‐polarized high‐isolation horn antenna at Ka‐band

Kunooru

Nandigama

Dasari

et al. 2023

Micro & Optical Tech Letters

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A dual‐polarized horn antenna with good port‐to‐port isolation is designed at Ka‐band and fabricated using three‐dimensional (3D) printing technology, and the measured results are discussed with simulation data. In order to achieve high port‐to‐port isolation with dual polarization, a metallic via is inserted into the coupled port, which is placed on top of the broad wall input of the horn antenna. The proposed horn is fabricated with the help of a low‐cost atomic diffusion additive manufacturing (ADAM) 3D printing technique using 17‐4PH stainless steel material. The measured reflection parameter at port1 (direct port) is better than 15 dB over Ka‐band, while the measured reflection parameter at port2 (coupled port) is better than 10 dB over 27–29 GHz, the isolation parameter (S21) between the ports is better than 50 dB over Ka‐band, and the cross‐polarization level is at least 30 dB below the copolarization.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%