Slot type antenna with tuning circuit
First Claim
1. AN ANTENNA COMPRISING A SUBSTANTIALLY RECTANGULAR CONDUCTIVE FRAME, THE LONG SIDES OF SAID FRAME EXCEEDING THE LENGTH OF TWICE THE SHORT SIDES OF SAID FRAME, MEANS FOR TUNING SAID ANTENNAL INCLUDING A VARIABLE CAPACITANCE, MEANS FOR CONNECTING SAID VARIABLE CAPACITANCE BETWEEN THE CENTERS OF THE TWO LONG SIDES OF SAID FRAME, A SECOND VARIABLE CAPACITANCE, A CONDUCTIVE LEAD, MEANS FOR CONNECTING ONE SIDE OF SAID SECOND VARIABLE CAPACITANCE TO ONE END OF SAID CONDUCTIVE LEAD, MEANS FOR CONNECTING THE OTHER END OF SAID CONDUCTIVE LEAD TO ONE CORNER OF SAID FRAME, A COAXIAL CABLE HAVING A CENTER CONDUCTOR AND A GROUND SHIELD, MEANS FOR CONNECTING SAID GROUND SHIELD TO AN ADJACENT CORNER OF SAID RECTANGULAR FRAME, AND MEANS FOR CONNECTING SAID INNER CONDUCTOR TO THE OTHER SIDE OF SAID SECOND CAPACITOR.
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Accused Products
36 Citations
1 Claim
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1. AN ANTENNA COMPRISING A SUBSTANTIALLY RECTANGULAR CONDUCTIVE FRAME, THE LONG SIDES OF SAID FRAME EXCEEDING THE LENGTH OF TWICE THE SHORT SIDES OF SAID FRAME, MEANS FOR TUNING SAID ANTENNAL INCLUDING A VARIABLE CAPACITANCE, MEANS FOR CONNECTING SAID VARIABLE CAPACITANCE BETWEEN THE CENTERS OF THE TWO LONG SIDES OF SAID FRAME, A SECOND VARIABLE CAPACITANCE, A CONDUCTIVE LEAD, MEANS FOR CONNECTING ONE SIDE OF SAID SECOND VARIABLE CAPACITANCE TO ONE END OF SAID CONDUCTIVE LEAD, MEANS FOR CONNECTING THE OTHER END OF SAID CONDUCTIVE LEAD TO ONE CORNER OF SAID FRAME, A COAXIAL CABLE HAVING A CENTER CONDUCTOR AND A GROUND SHIELD, MEANS FOR CONNECTING SAID GROUND SHIELD TO AN ADJACENT CORNER OF SAID RECTANGULAR FRAME, AND MEANS FOR CONNECTING SAID INNER CONDUCTOR TO THE OTHER SIDE OF SAID SECOND CAPACITOR.
Specification
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- Resources
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Current AssigneeRalph O. Parker
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Original AssigneeRalph O. Parker
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InventorsParker, Ralph O.
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Application NumberUS04/173,523Time in Patent Office1,328 DaysField of SearchUS Class Current343/743CPC Class CodesH01Q 13/103 with variable reactance for...
