Tunable microwave multiplexer
AssigneeRadio Frequency Systems, Inc.
InventorsChi Wang, William Deppen Blair
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Abstract
The invention is related to the field of tunable multiplexers. It consists of a tunable microwave multiplexer comprising a plurality of channel filters coupled to a combining/dividing mechanism. The plurality of channel filters can be either dielectric loaded resonators or combline resonators, while the combining/dividing mechanism can be a common resonator. In one embodiment, the common resonator is a multiple half-wavelength coaxial resonator.
Claims52
A tunable microwave multiplexer, comprising:
- a plurality of channel filters comprising at least one resonator;
- and
- a combining/dividing mechanism coupled to said plurality of channel filters comprising:
- a common port;
- and
- a multiple half-wavelength common resonator coupled to said common port.
A tunable microwave multiplexer, comprising:
- a plurality of channel filters comprising at least one resonator;
- and
- a combining/dividing mechanism coupled to said plurality of channel filters via coupling apertures, comprising:
- a common port, and
- a multiple half-wavelength coaxial resonator coupled to said common port;
- and
- transmission ports coupled to said plurality of filters.
A microwave communication system, comprising:
- a receiver;
- a signal processor coupled to said receiver;
- and
- at least one antenna coupled to said receiver;
- wherein said receiver comprises at least one tunable microwave multiplexer, comprising:
- a plurality of channel filters comprising at least one resonator;
- and
- a combining/dividing mechanism coupled to said plurality of channel, comprising:
- a common port, and
- a multiple half-wavelength coaxial resonator coupled to said common port;
- and
- transmission ports coupled to said plurality of filters.
A microwave communication system, comprising:
- a transmitter;
- a signal processor coupled to said transmitter;
- and at least one antenna coupled to said transmitter;
- wherein said transmitter comprises at least one tunable microwave multiplexer, comprising:
- a plurality of channel filters comprising at least one resonator;
- and
- a combining/dividing mechanism coupled to said plurality of channel filters, comprising:
- a common port, and
- a multiple half-wavelength coaxial resonator coupled to said common port;
- and
- transmission ports coupled to said plurality of filters.
A method of multiplexing a plurality microwave channel frequencies, comprising:
- inputting a signal comprising a plurality of frequency channels into a common resonator;
- maintaining the phase difference between a common port of a common resonator to each RF port of a plurality of cavity channel filters at approximately 0 or 180 degrees;
- separating said signal comprising a plurality of frequency channels;
- and outputting at least one of said plurality of frequency channels.
Dependencies are inferred from the claim text.