Reconfigurable diplexer for communications applications
First Claim
1. A diplexer for coupling transmission signals to and from a single transmission line, comprising:
- a common, slot-line transmission line adapted to carry electromagnetic signals;
a pair a separate slot-line transmission lines coupled to the common transmission line;
each separate slot-line transmission line having an individual filter coupled thereto, wherein each filter is adapted to selectively give its respective separate slot-line transmission line a characteristic impedance dependent upon predetermined frequencies of the electromagnetic signals; and
a separate slot-line balun associated with each separate slot line transmission line and adapted for coupling signals to and/or from its respective separate slot-line transmission line.
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Accused Products
Abstract
The present invention provides a reconfigurable diplexer which is well suited for use with mulitple element antenna arrays. The diplexer includes a common, slot-line transmission line adapted to carry electromagnetic signals; a pair a separate slot-line transmission lines coupled to the common transmission line; each separate slot-line transmission line having an individual filter coupled thereto, wherein each filter is adapted to selectively give its respective separate slot-line transmission line a characteristic impedance dependent upon predetermined frequencies of the electromagnetic signals; and a separate slot-line balun associated with each separate slot-line transmission line and adapted for coupling signals to and/or from its respective separate slot-line transmission line. The diplexer may be configured to operate in several different bands such as the INTELSAT frequencies (7.2-8.4 GHz) or DSCS frequencies (11.7-14.5 GHz).
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Citations
11 Claims
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1. A diplexer for coupling transmission signals to and from a single transmission line, comprising:
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a common, slot-line transmission line adapted to carry electromagnetic signals;
a pair a separate slot-line transmission lines coupled to the common transmission line;
each separate slot-line transmission line having an individual filter coupled thereto, wherein each filter is adapted to selectively give its respective separate slot-line transmission line a characteristic impedance dependent upon predetermined frequencies of the electromagnetic signals; and
a separate slot-line balun associated with each separate slot line transmission line and adapted for coupling signals to and/or from its respective separate slot-line transmission line. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification