Cross-Band Scattering Suppression for MultiBand Base Station Antenna Arrays
- Publisher:
- IEEE
- Publication Type:
- Conference Proceeding
- Citation:
- 2019 8th Asia-Pacific Conference on Antennas and Propagation, APCAP 2019, 2019, 00, pp. 579-580
- Issue Date:
- 2019-08-04
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This paper presents a dual-band dual-polarized interleaved base station antenna array unit based on a filtering antenna for cross-band de-scattering. The array is configured as two columns of antenna arrays operating at a higher band from 1.71 GHz to 2.30 GHz interleaved with one column of antenna array operating at a lower band from 0.80 GHz to 0.96 GHz. By inserting low-pass high-stop filters into the low-band dipole arms, a filtering antenna that can efficiently suppress the radiation at the higher band is achieved. On one hand, the obtained filtering antenna has a slightly reduced gain and narrower bandwidth, which is attributed to the filters. On the other hand, the obtained filtering antenna working at the low band has minimum negative effect on the high band antenna performance.
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