期刊
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
卷 59, 期 12, 页码 4840-+出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TAP.2011.2165497
关键词
Miniaturization; multibeam antenna; multimode; substrate integrated waveguide (SIW)
资金
- National Natural Science Foundation of China (NSFC) [61001028]
- Research Fund for the Doctoral Program of Higher Education of China (RFDP) [20100185110014]
- Fundamental Research Funds for the Central Universities [ZYGX2010J019]
Substrate integrated waveguide (SIW) presents an excellent candidate in the development of millimeter-wave integrated printed multibeam antenna depending on its inherent advantages. But the SIW-based multibeam antenna usually occupies a large circuit size. To overcome this weakness, we propose a novel miniaturized SIW multibeam antenna at the center frequency 33.5 GHz. Such a structure can be considered as an asymmetric multimode beamforming network (BFN) directly integrated with a compact antipodal linearly tapered slot antenna (ALTSA) array without additional phase shifters or connection lines. It has smaller circuit size compared with the state-of-the-art SIW multibeam antenna technology. Four beams with different beam directions can be generated to cover the angle range of around 76 degrees with 3 dB beam-widths at the center frequency.
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