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Wideband Butler Matrix Based on Dual-Layer HMSIW for Enhanced Miniaturization

Authors :
Lei-Lei Qiu
Zhao-An Ouyang
Lianwen Deng
Lei Zhu
Source :
IEEE Microwave and Wireless Components Letters. 32:25-28
Publication Year :
2022
Publisher :
Institute of Electrical and Electronics Engineers (IEEE), 2022.

Abstract

This letter proposes a miniaturized wideband Butler matrix (BM) based on dual-layer half-mode substrate integrated waveguide (HMSIW) structure. By virtue of the excellent features of shorter guided wavelength, flatter in-band phase slope, and more compact size of HMSIW, simple and compact couplers and phase shifter are newly designed for BM. Finally, a BM prototype is designed, fabricated, and measured. Benefiting from the proposed structure, size miniaturization over 90% is achieved in comparison with the traditional single-layer substrate integrated waveguide (SIW) type.

Details

ISSN :
15581764 and 15311309
Volume :
32
Database :
OpenAIRE
Journal :
IEEE Microwave and Wireless Components Letters
Accession number :
edsair.doi...........454f85cdef1e7dad76fa5f292590cf98