Design of fully integrated 4x4 and 8x8 Butler matrices in microstrip/slot technology for ultra wideband smart antennas

Author

Bialkowski, Marek E. ; Tsai, Feng-Chi E. ; Su, Yu-Chuan ; Cheng, Kai-Hong

Author_Institution

Sch. of ITEE, Univ. of Queensland, Brisbane, QLD

fYear

2008

fDate

5-11 July 2008

Firstpage

1

Lastpage

4

Abstract

The paper presents the design of ultra wideband (UWB) 4times4 and 8times8 Butler matrices in multi-layer microstrip-slot technology that are aimed for inclusion in UWB switched-beam smart antennas. The design exploits the multi-layer microstrip/slot technology to accomplish UWB 3 dB couplers and differential phase shifters that form these two devices. The choice of this technology helps to overcome the problem of crossovers, which is the main challenge in practical realizations of Butler matrices.

Keywords

adaptive antenna arrays; microstrip antenna arrays; slot antenna arrays; ultra wideband antennas; Butler matrices; UWB; microstrip-slot technology; multilayer microstrip-slot technology; switched-beam smart antennas; ultra wideband smart antennas; Butler matrix; Couplers; Frequency; Microstrip antennas; Paper technology; Phase shifters; Slot antennas; Transmission line matrix methods; Ultra wideband antennas; Ultra wideband technology;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 2008. AP-S 2008. IEEE

Conference_Location

San Diego, CA

Print_ISBN

978-1-4244-2041-4

Electronic_ISBN

978-1-4244-2042-1

Type

conf

DOI

10.1109/APS.2008.4619182

Filename

4619182