Dual-polarized filtering antenna for mm-Wave 5G base station antenna array
Siddiqui, Zeeshan; Sonkki, Marko; Rasilainen, Kimmo; Chen, Jiangcheng; Berg, Markus; Leinonen, Marko E.; Pärssinen, Aarno (2021-04-27)
Z. Siddiqui et al., "Dual-Polarized Filtering Antenna for mm-Wave 5G Base Station Antenna Array," 2021 15th European Conference on Antennas and Propagation (EuCAP), 2021, pp. 1-4, doi: 10.23919/EuCAP51087.2021.9411318.
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https://urn.fi/URN:NBN:fi-fe2021060834670
Tiivistelmä
Abstract
This paper presents a dual-polarized filtering antenna designed for a 5G mm-Wave base station phased array. The out-of-band radiation of a stacked patch antenna is suppressed by embedding filtering structures along with radiating patches and feed network. Four radiation nulls can be tuned by introducing a combination of open-loop and hairpin resonators at appropriate locations, and a bandpass filtering response can be achieved. The antenna design principles and simulated performance are discussed. The antenna operates in n257 and n258 mm-Wave bands, demonstrating -10 dB impedance bandwidth at 24.25—29.5 GHz. The realized gain remains stable between 5 and 6 dBi at all the operating frequencies. The isolation between the ports and cross-polar discrimination remain better than 20 dB in all the covered frequency range.
Kokoelmat
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