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Multi-layer spatial angular filter with air gap tuner to suppress the grating lobes of microstrip patch arrays
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- Authors
- Youngju Lee, Sung Hun Jeong, Wee Sang Park, Jae Seung Yun, Soon Ik Jeon
- Issue Date
- 2002-06
- Citation
- International Microwave Symposium (IMS) 2002, pp.1329-1332
- Language
- English
- Type
- Conference Paper
- Abstract
- In this paper, we propose a multi-layer spatial angular filter containing periodically high and low permittivity dielectric layers and air gap tuners to suppress the grating lobes of microstrip patch antennas. When the filter is applied to a 16×16 phased array with many grating lobes due to the 2.8{\\lambda} spacing between adjacent phase shifters, we show that the grating lobes, which induce interference among satellites, are completely eliminated outside the 짹30째 range.
- KSP Keywords
- Air-gap, Low permittivity, Microstrip patch antennas, Phase Shifter, Spatial angular filter, dielectric layer, grating lobes, multi-layer, phased array