Artificial magnetic conductor
US-9093753-B2 · Jul 28, 2015 · US
Wide bandwidth automatic tuning circuit
US9407239B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9407239-B2 |
| Application number | US-201213472396-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 15, 2012 |
| Priority date | Jul 6, 2011 |
| Publication date | Aug 2, 2016 |
| Grant date | Aug 2, 2016 |
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Abstract
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An automatic tuning circuit for matching an antenna to a radio receiver. The automatic tuning circuit includes a tunable non-Foster circuit for coupling the receiver and the antenna; and sensing and feedback circuits for sensing the combined capacitance of the tunable non-Foster circuit and the antenna and for tuning the tunable non-Foster circuit to automatically minimize the combined capacitance of the tunable non-Foster circuit and the antenna.
First claim
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What is claimed is: 1. An automatic tuning circuit for matching an antenna to a radio receiver, the automatic tuning circuit comprising: a tunable non-Foster circuit coupling the receiver and the antenna; and sensing and feedback circuits sensing the combined reactance of the tunable non-Foster circuit and the antenna and for tuning the tunable non-Foster circuit to automatically minimize the combined reactance of the tunable non-Foster circuit and the antenna without making the…
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Frequently asked questions
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- What does patent US9407239B2 cover?
- An automatic tuning circuit for matching an antenna to a radio receiver. The automatic tuning circuit includes a tunable non-Foster circuit for coupling the receiver and the antenna; and sensing and feedback circuits for sensing the combined capacitance of the tunable non-Foster circuit and the antenna and for tuning the tunable non-Foster circuit to automatically minimize the combined capacita…
- Who is the assignee on this patent?
- White Carson R, Colburn Joseph S, Yung Michael W, and 2 more
- What technology area does this patent fall under?
- Primary CPC classification H03H11/30. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Aug 02 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).