Title :
UHF frequency selective limiters
Author :
Adam, J.D. ; Stitzer, S.N. ; Young, R.M.
Author_Institution :
Northrop Grumman Electron. Sensors & Syst. Sector, Baltimore, MD, USA
Abstract :
A frequency selective limiter, based on magnetostatic surface wave propagation in a GaScYIG film, is described. Small signal insertion loss was 10 dB and the threshold power level was -25 dBm over the 400 MHz to 800 MHz frequency range. Small signal attenuation and intermodulation products, resulting from the interaction between two signals, are only significant if the signals are less than 10 MHz apart. Similar devices are expected to be used to extend the dynamic range of broadband receivers.
Keywords :
UHF devices; gallium compounds; garnets; intermodulation; magnetic microwave devices; magnetic thin film devices; magnetostatic wave devices; microwave limiters; scandium compounds; yttrium compounds; 10 dB; 400 to 800 MHz; GaScYFe5O12; GaScYIG; GaScYIG film; UHF frequency selective limiters; broadband receivers; dynamic range; intermodulation products; magnetostatic surface wave propagation; small signal attenuation; small signal insertion loss; threshold power level; Attenuation; Frequency measurement; Insertion loss; Magnetic anisotropy; Magnetic separation; Magnetostatic waves; Perpendicular magnetic anisotropy; Power generation; Saturation magnetization; Surface waves;
Conference_Titel :
Microwave Symposium Digest, 2001 IEEE MTT-S International
Conference_Location :
Phoenix, AZ, USA
Print_ISBN :
0-7803-6538-0
DOI :
10.1109/MWSYM.2001.967100
