Reconfigurable multiplexer
First Claim
1. A reconfigurable multiplexer comprising a string of N series-connected field reversible circulators, where N is a positive integer;
- whereina first end of the string is coupled to a first source of electromagnetic energy, and a second end of the string is coupled to a second source of electromagnetic energy;
coupled to each circulator is a channelizing filter, wherein the N channelizing filters divide the electromagnetic energy from the two sources into a set of N frequency channels; and
the direction of rotation of electromagnetic energy within each circulator is selectively chosen so that selected ones of the N channels are assigned to the first source while selected others of the N channels are assigned to the second source.
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Accused Products
Abstract
A dynamically reconfigurable multiplexer (7) has applicability in a space diversity communications system or a polarization reuse communications system. Multiplexer (7) may be situated on board a communications satellite or at the control nexus of a terrestrial microwave communications system. Multiplexer (7) comprises a set of N series-connected field reversible circulators (51). Coupled to one of the three ports of each circulator (51) is a channelizing filter (53), followed by an output isolator (54) and a high power amplifier (55). The electromagnetic energy rotating within each circulator (51) is commanded to move in either a clockwise or counter-clockwise direction, depending upon whether it is desired to access the channel (52) corresponding to said circulator (51) via a first energy source (1) or second energy source (2). An input isolator (43, 44) associated with each antenna (1, 2) absorbs unwanted energy emanating from the opposing antenna (2, 1).
37 Citations
8 Claims
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1. A reconfigurable multiplexer comprising a string of N series-connected field reversible circulators, where N is a positive integer;
- wherein
a first end of the string is coupled to a first source of electromagnetic energy, and a second end of the string is coupled to a second source of electromagnetic energy; coupled to each circulator is a channelizing filter, wherein the N channelizing filters divide the electromagnetic energy from the two sources into a set of N frequency channels; and the direction of rotation of electromagnetic energy within each circulator is selectively chosen so that selected ones of the N channels are assigned to the first source while selected others of the N channels are assigned to the second source. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
- wherein
Specification