The novel circulator includes a substrate, a predetermined number of microstrip lines disposed on {HEAD ~ a top} of {TAIL ~ the substrate}, a ground layer and a predetermined number of electrical contacts disposed on the bottom of the substrate, and a mechanism for coupling each microstrip line to one of the electrical contacts 
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The novel circulator includes a substrate , a predetermined number of microstrip lines disposed on { HEAD ~ a top } of { TAIL ~ the substrate } , a ground layer and a predetermined number of electrical contacts disposed on the bottom of the substrate , and a mechanism for coupling each microstrip line to one of the electrical contacts
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH