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