A half gigawatt dual-moded x-band transmission and rf pulse compression system

Tantawi, Sami; Nantista, C.; Burke, D. L.; Schultz, D.; Atkinson, D.; Chan, Jose; Nelson, J.; Andrikopoulos, E.; McCormick, D.; Ratcliffe, Krista; Dolgashev, Valery

doi:10.1109/mwsym.2004.1339156

Cited by 2 publications

(1 citation statement)

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“…For amplitude modulated pulses, several techniques can be applied including nonlinear transmission lines [5], switched inductors or switched resonant delay lines [2,[6][7][8][9]. The latter is based on a simple and well known fact that a charged inductor in series with a switch can generate a high voltage spike when the switch is turned off.…”

Section: Introductionmentioning

confidence: 99%

Power efficient RF pulse compression through switched resonators

Kim

Wang

2005

IEEE MTT-S International Microwave Symposium Digest, 2005.

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A simple, compact and efficient RF pulse compression technique based on a switched resonator concept has been introduced. It utilizes the charging/discharging characteristics of the circuit resonator and can be applied to any other microwave resonators. The approach compresses the duration of the pulse envelope without changing the phase characteristics of the RF carrier. The achievable power efficiency has proven to be sub-optimal which is 1dB lower than the lossless case. A test bed with a microstrip coupled line resonator and a Schottky diode has been fabricated and tested. The experiment demonstrates a 4 to 1 compression ratio. The proposed technique is promising for many RF signal processings such as RF multiplexing in a noise limited scenarios.

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