The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 15, 2013
Filed:
Sep. 28, 2009
Akira Ando, Urayasu, JP;
Akira Ando, Urayasu, JP;
Soshin Electric Co., Ltd., Saku, JP;
Abstract
Provided is a high frequency switch wherein first switch circuits, each of which includes a first PIN diode, are connected in parallel to one or more first λ/4 signal transmitting paths which transmit transmitting signals, and second switch circuits, each of which includes a second PIN diode, are connected in parallel to one or more second λ/4 signal transmitting paths which transmit receiving signals to a receiving terminal. A first control voltage is applied to the cathode of the first PIN diode, and a second control voltage is applied to the cathode of the second PIN diode. Furthermore, a biasing circuit which applies a constant bias voltage is connected to each anode of the first PIN diode and the second PIN diode.