期刊
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
卷 69, 期 10, 页码 6924-6929出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TAP.2021.3078242
关键词
Backfire to endfire; full-space scanning; leaky-wave antenna (LWA); open stopband suppression
资金
- National Natural Science Foundation of China [61871207]
- Shenzhen Science and Technology Innovation Committee Funds [JCYJ20190809115419425]
A full-space scanning leaky-wave antenna with small aperture size and relatively stable gain is proposed in this communication. The design principles include single-harmonic radiation, field cancellation suppression at endfire, and open stopband suppression at broadside. Experimental results show stable scanning capability with a main beam continuously scanning from backfire to endfire within a frequency range of 4.5-10.2 GHz.
A full-space scanning leaky-wave antenna featuring small aperture size and relatively stable gain is proposed in this communication. We propose three key conditions for full-space scanning capability, including single-harmonic radiation, field cancellation suppression at endfire, and open stopband suppression at broadside. Results from a prototype based on paired stubs and crossover offset parallel striplines are provided to verify the proposed principle. Experimental results show that the main beam is able to continuously scan from backfire to endfire with stable gain around 9.1 dBi within the frequency range of 4.5-10.2 GHz. The antenna aperture is 6.85 lambda(0) x 0.1 lambda(0) only.
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