Title :
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
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;
Conference_Titel :
Advanced Communication Control and Computing Technologies (ICACCCT), 2014 International Conference on
Conference_Location :
Ramanathapuram
Print_ISBN :
978-1-4799-3913-8
DOI :
10.1109/ICACCCT.2014.7019169
