A novel modularized folded highly compact LTCC Butler matrix

Author

Tudosie, George ; Vahldieck, Ruediger ; Lu, Albert

Author_Institution

Laboratory for Electromagnetic Fields and Microwave Electronics(IFH), ETH Zurich, Gloriastrasse 35, 8092, Switzerland

fYear

2008

fDate

15-20 June 2008

Firstpage

691

Lastpage

694

Abstract

This paper describes the realization of a 8x8 Butler matrix taking full advantage of the 3D packaging capability of LTCC. The novelty of the design lies in the folding and stacking of phase shifters and couplers on 40 layers of LTCC tape to reduce the lateral dimensions of a 5 GHz Butler matrix. The achieved size reduction is better than 1/5 of the original planar design showing excellent electrical performance. Furthermore, the new LTCC realization allows modular extension of Butler matrices to multiples of 8x8.

Keywords

antenna accessories; antenna phased arrays; ceramic packaging; phase shifters; 3D packaging capability; LTCC Butler matrix; beamforming network; couplers; folding; frequency 5 GHz; modular folded compact Butler matrix; phase shifters; phased array antenna; stacking; Butler matrix; Couplers; Frequency; Laboratories; Multiaccess communication; Parallel processing; Phase shifters; Space time codes; Stacking; Transmission line matrix methods; Beam scanning; Butler matrix; beamformers; folded Butler; modular Butler; smart antenna systems;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 2008 IEEE MTT-S International

Conference_Location

Atlanta, GA

ISSN

0149-645X

Print_ISBN

978-1-4244-1780-3

Electronic_ISBN

0149-645X

Type

conf

DOI

10.1109/MWSYM.2008.4632926

Filename

4632926