Design and implementation of hybrid ring coupler for 800MHz–1200 MHz

Author

Jagatheesh, N. ; Muthukumaran, P. ; Prince, S. Navin Andrew

Author_Institution

Sri Venkateswara Coll. of Eng., Chennai, India

fYear

2014

fDate

8-10 May 2014

Firstpage

60

Lastpage

63

Abstract

A novel wide band hybrid ring coupler is proposed in this paper. The change in length of transmission line is calculated and it is converted in to equivalent impedance. Impedance of the circuit is varied using variable capacitor. The device is to be fabricated and tested for frequency range 800-1200MHz. The circuit shows improved isolation and return loss. The circuit is reduced by using Koch fractal curve method. The results for both conventional and the reduced Koch hybrid coupler are simulated and the results are compared.

Keywords

UHF couplers; capacitors; curve fitting; fractals; microwave circuits; transmission lines; Koch fractal curve method; Koch hybrid coupler; equivalent impedance; frequency 800 MHz to 1200 MHz; return loss; transmission line; variable capacitor; wide band hybrid ring coupler; Capacitance; Capacitors; Couplers; Fractals; Microwave theory and techniques; Ports (Computers); Power transmission lines; Broadband; Koch fractal; frequency compensating network; variable capacitor;

fLanguage

English

Publisher

ieee

Conference_Titel

Advanced Communication Control and Computing Technologies (ICACCCT), 2014 International Conference on

Conference_Location

Ramanathapuram

Print_ISBN

978-1-4799-3913-8

Type

conf

DOI

10.1109/ICACCCT.2014.7019169

Filename

7019169