Microstrip manifold coupled multiplexer
First Claim
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1. A multiplexer comprising:
- a microstrip manifold, the microstrip manifold including at least one planar conductive strip disposed on a non-conductive or dielectric substrate; and
a filter bank, external to the microstrip manifold, comprising at least two output filters, wherein;
at least one of the two output filters is a cavity or dielectric resonator filter;
the multiplexer is configured to channelize an input radio frequency (RF) band of electromagnetic energy into a set of output channels by way of the filter bank; and
the microstrip manifold has an input port configured to receive an input RF signal, and at least two output ports, the microstrip manifold being configured to distribute, by way of the at least one planar conductive strip, said input RF signal to each of said output ports, each said output port being coupled to a respective input of the at least two output filters.
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Abstract
A multiplexer includes a microstrip manifold, and a filter bank having at least two output filters. The multiplexer channelizes an input radio frequency (RF) band of electromagnetic energy into a set of output channels by way of the filter bank. The microstrip manifold has an input port that receives an input RF signal, and at least two output ports. The microstrip manifold distributes the input RF signal to each output port, each said output port being coupled to a respective one of the at least two output filters. The multiplexer may be an input multiplexer for a spacecraft communications payload system.
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Citations
15 Claims
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1. A multiplexer comprising:
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a microstrip manifold, the microstrip manifold including at least one planar conductive strip disposed on a non-conductive or dielectric substrate; and a filter bank, external to the microstrip manifold, comprising at least two output filters, wherein; at least one of the two output filters is a cavity or dielectric resonator filter; the multiplexer is configured to channelize an input radio frequency (RF) band of electromagnetic energy into a set of output channels by way of the filter bank; and the microstrip manifold has an input port configured to receive an input RF signal, and at least two output ports, the microstrip manifold being configured to distribute, by way of the at least one planar conductive strip, said input RF signal to each of said output ports, each said output port being coupled to a respective input of the at least two output filters. - View Dependent Claims (2, 3, 4, 5)
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- 6. A manifold coupled multiplexer, wherein the manifold is a microstrip including at least one planar conductive strip disposed on a non-conductive or dielectric substrate, and is configured to receive an input radio frequency (RF) signal at an input port and to distribute, by way of the at least one planar conductive strip, the input RF signal to each of at least two output ports, each said output port being coupled to a respective input of at least two output filters, at least one of the two output filters being a cavity or dielectric resonator filter.
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11. A spacecraft communications payload system comprising at least one input multiplexer, the at least one input multiplexer comprising:
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a microstrip manifold, the microstrip manifold including at least one planar conductive strip disposed on a non-conductive or dielectric substrate; and a filter bank, external to the microstrip manifold, comprising at least two output filters, wherein; at least one of the two output filters is a cavity or dielectric resonator filter; the multiplexer is configured to channelize an input radio frequency (RF) band of electromagnetic energy into a set of output channels by way of the filter bank; and the microstrip manifold has an input port configured to receive an input RF signal, and at least two output ports, the microstrip manifold being configured to distribute, by way of the at least one planar conductive strip, said input RF signal to each of said output ports, each said output port being coupled to a respective input of the at least two output filters. - View Dependent Claims (12, 13, 14, 15)
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Specification