Title :
MMIC-compatible terminal protection device
Author :
Kaul, R. ; McAdoo, J. ; Bollen, W.M. ; Catoe, W.
Author_Institution :
Army Res. Lab., Adelphi, MD, USA
Abstract :
A low-cost terminal protection device (TPD) employing only five components has been demonstrated that is compatible with monolithic microwave integrated circuits (MMICs) and suitable for phased-array applications. Using a standard low-noise, depletion-mode MESFET (metal semiconductor field-effect transistor) across a 50-/spl Omega/ line, the TPD achieves a small-signal insertion loss less than 1 dB up to 3 GHz. With a single stage, the TPD attenuated 20-W pulses by 14 dB and 500-W pulses by 23 dB. Spike leakage was less than 0.1 /spl mu/J.
Keywords :
MMIC; Schottky gate field effect transistors; phased array radar; protection; 1 dB; 20 to 500 W; 3 GHz; MMIC; depletion-mode MESFET; front end; microwave pulse attenuation; phased array radar; small-signal insertion loss; spike leakage; terminal protection device; Capacitance; Circuits; FETs; Field effect MMICs; Insertion loss; MESFETs; Power transmission lines; Protection; Pulse measurements; Resistors;
Conference_Titel :
Microwave Symposium Digest, 1998 IEEE MTT-S International
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
0-7803-4471-5
DOI :
10.1109/MWSYM.1998.700702
