Title :
A Software Configurable Coupler with Programmable Coupling Coefficient
Author :
Wang, Shih-Ming ; Chang, Chi-Yang ; Lin, Jenshan
Author_Institution :
Inf. & Commun. Res. Lab., Hsinchu
Abstract :
A novel microstrip parallel coupler with tunable coupling coefficient is proposed. Two varactors are placed on microstrip parallel-coupled lines to tune the coupling coefficient. With proper combinations of the capacitances of two varactors, the coupling coefficient can be tuned from 10 dB to 6 dB with good return loss and directivity. By using the Labview program and data acquisition component, a software configurable coupler is implemented. This software configurable coupler will be useful in microwave instrumentation.
Keywords :
circuit tuning; computerised instrumentation; coupled circuits; electronic engineering computing; microstrip couplers; microstrip lines; varactors; Labview program; data acquisition component; directivity factor; microstrip parallel coupler; microstrip parallel-coupled lines; microwave instrumentation; programmable coupling coefficient; reconfigurable architecture; return loss; software configurable coupler; tunable coupling coefficient; varactors capacitance; Capacitance; Coupling circuits; Filters; Impedance matching; Inductance; Instruments; Microstrip; Microwave theory and techniques; Tunable circuits and devices; Varactors; Coupling circuit; microstrip couplers; reconfigurable architecture; tunable circuit and devices;
Conference_Titel :
Microwave Symposium, 2007. IEEE/MTT-S International
Conference_Location :
Honolulu, HI
Print_ISBN :
1-4244-0688-9
Electronic_ISBN :
0149-645X
DOI :
10.1109/MWSYM.2007.380321
