Title :
p-i-n-Diode-Based Four-Channel Switched Filter Bank With Low-Power TTL-Compatible Driver
Author :
Gentili, Fabrizio ; Urbani, Laura ; Bianchi, G. ; Pelliccia, Luca ; Sorrentino, Roberto
Author_Institution :
Dept. of Eng. (DI), Univ. of Perugia, Perugia, Italy
Abstract :
The design of a four-channel switched filter bank in the S- and C-band using p-i-n-diode switches is described. Narrowband filters (3.2%-3.5%) are designed on suspended substrate stripline. The biasing circuit allows the switches to be driven with transistor-transistor-logic-compatible voltages and minimum biasing current. The average insertion loss measured is 3.6 dB corresponding to a Q-factor of 580. Spurious responses were suppressed from dc to roughly 19 GHz.
Keywords :
Q-factor; channel bank filters; p-i-n diodes; semiconductor switches; transistor-transistor logic; -factor; C-band; S-band; biasing circuit; four-channel switched filter bank; low-power TTL-compatible driver; minimum biasing current; narrowband filters; p-i-n-diode switches; suspended substrate stripline; transistor-transistor-logic-compatible voltages; Insertion loss; Microstrip; Microwave circuits; Radio frequency; Stripline; Substrates; Switches; Low-power single-pole $n$-throw (SPnT) driver; suspended stripline substrate (SSS) filters; switched filter bank (SFB); transistor–transistor–logic (TTL) compatible; wideband spurious rejection;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
DOI :
10.1109/TMTT.2014.2364216
