Asymmetric coupled-line directional coupler for application in 4 ×4 Butler matrix

Author

Sorocki, Jakub ; Piekarz, Ilona

fYear

2012

fDate

20-22 Nov. 2012

Firstpage

1747

Lastpage

1750

Abstract

A coupled-line single-section directional coupler has been design in asymmetric multilayer dielectric structure. Since in such structures capacitive and inductive coupling coefficients are not equal, a recently developed compensation technique has been used to improve the coupler´s electrical parameters. The presented approach has been verified by simulations of a 3-dB coupled-line directional coupler operating at f₀ = 24 GHz. The designed coupler has been used as a basic component of a 4 × 4 Butler matrix. The obtained performance of the Butler matrix has been verified by EM simulation of the network.

Keywords

directional couplers; microwave antenna arrays; multilayers; 4×4 Butler matrix; asymmetric coupled line single section directional coupler; asymmetric multilayer dielectric structure; capacitive coupling coefficients; frequency 24 GHz; inductive coupling coefficients; microwave antenna arrays; Butler matrix; Capacitance; Couplings; Dielectrics; Directional couplers; Ports (Computers); Asymmetric dielectric structure; Butler matrix; coupled-line directional coupler; coupling coefficients compensation;

fLanguage

English

Publisher

ieee

Conference_Titel

Telecommunications Forum (TELFOR), 2012 20th

Conference_Location

Belgrade

Print_ISBN

978-1-4673-2983-5

Type

conf

DOI

10.1109/TELFOR.2012.6419566

Filename

6419566