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Design of High-Power Switched Filter Bank for Harmonic Suppression  

Lee, Byeong-Nam (ADD)
Park, Dong-Chul (Chungnam National University)
Publication Information
Journal of the Korea Institute of Military Science and Technology / v.11, no.3, 2008 , pp. 146-153 More about this Journal
Abstract
High-power communication jammer has to include the switched filter bank to eliminate the harmonic signals generated by amplifier. Generally, the switched filter bank consists of in-out switches and several filters. This paper describes the design of high-power switched filter bank, particularly the high-power filter bank operating over 20$\sim$110MHz frequency range. The filters designed have insertion loss less than 0.3dB, VSWR less than 1.25:1, and harmonic suppression more than 35dB. Also, the switched filter bank can endure upto 2kW high-power signal with very low harmonic level within $30{\mu}s$ switching speed.
Keywords
Communication Jammer; Switched Filter Bank;
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