Design of power limiter for antenna-feeder system for direction finding protection on GaAs pHEMT

Circuits and Systems for Receiving, Transmitting and Signal Processing
Authors:
Klimenko D.V.Nikitin А.B.Stroganov A.A.
Abstract:

This paper presents the development results of a power limiter for the 30−6500 MHz frequency range, implemented as a microwave monolithic integrated circuit (MMIC) based on a domestic GaAs pHEMT technology. Implementing the power limiter as a monolithic integrated circuit reduces the weight and size of the final device compared to a hybrid implementation. The power limiter consists of three cascaded stages connected in parallel, comprising Schottky diodes interconnected by microstrip transmission lines that compensate for the parasitic capacitances of the diodes. The developed power limiter exhibits an insertion loss of less than 0.7 dB, an input and output VSWR of less than 1.2, an input 1 dB compression point of at least 22.8 dBm, and a maximum input power of at least 40.7 W. The MMIC die dimensions are 1400×1300 µm. The developed power limiter can be used in the input stage of receiving devices, such as antenna feeder systems for direction finding.

Funding:

The integrated circuit was manufactured using funds from the Ministry of Science and Higher Education of the Russian Federation within the framework of the federal project “Training of personnel and scientific foundation for the electronics industry” under the state assignment “Development of a prototyping methodology for electronic component base using domestic microelectronic manufacturing facilities based on MPW service” (FSMR-2023-0008).

Key words:
microwavemonolithic integrated circuitpower limiterantenna-feeder systemGaAs pHEMTSchottky diode
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