USA As Represented by Secretary of the Navy

Sentel Corporation

Shing Ted Li

John W Rockway

Daniel W Tam

Michael A Maiuzzo

James H Schukantz, Jr

Daniel W S Tam

James C Logan

Paul Michael McGinnis

Methods and systems for determining insertion loss for a mast clamp current probe (MCCP) coupled to a monopole antenna are disclosed. An exemplary method includes determining a first power radiated by the monopole antenna across a first range of frequencies while driving the monopole antenna using a base-feed arrangement to produce a first power-frequency measurement, determining a second power radiated by the monopole antenna across the first range of frequencies while driving the monopole antenna using an MCCP-feed arrangement to produce a second power-frequency measurement and to determine impedance mismatch (MM), and determining insertion loss using the first power-frequency measurement, the second power-frequency measurement and the impedance mismatch.

Mast clamp current probe (MCCP) insertion loss determining methods and systems

A comb limiter combiner for frequency-hopped communications includes an input signal coupler for coupling to a receiving antenna and distributing the antenna signal to a bank of input bandpass filters. The input bandpass filters have contiguous passbands that comprise the total receiver bandwidth. Each input bandpass filter is connected to a limiter having a threshold substantially equal to the limiting threshold of the receiver. Each limiter is connected to an output bandpass filter similar to the corresponding input bandpass filter to remove out-of-band intermodulation products generated by the limiter. The bank of output bandpass filters is connected to an output signal coupler for coupling to the front end of the receiver.

Comb limiter combiner for frequency-hopped communications

The present invention is a Comb linear amplifier combiner (CLAC) apparatus that allows one or more transmitters to transmit through one transmit antenna. The CLAC apparatus passes low powered transmit signals through a bank of bandpass filters. The transmit signals then pass through Class A amplifiers which amplify the transmit signals to the full transmit power. The full transmit power signals then pass through a second bank of bandpass filters. The transmission signals are then transmitted through a single transmission antenna.

Comb linear amplifier combiner (CLAC)

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San Diego, CA, United States of America

Shing Ted Li