Electronic circuit for a high-frequency switch
US7869764B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 1, 2008 |
| Grant date | Jan 11, 2011 |
| Priority date | — |
| Expiry date | Aug 7, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K7/10316
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An electronic circuit for a high-frequency switch for opening an antenna resonance circuit of an RFID system, wherein the high-frequency switch can be opened and closed by d.c. voltages, in which circuit a rectifier circuit generates the blocking voltage for opening the high-frequency switch from the high-frequency supply voltage, the rectifier circuit is designed such that it generates a blocking voltage whose value corresponds at least to the peak-to-peak value of the high-frequency voltage to be switched, the blocking voltage is conducted via the same electric connecting line via which the high-frequency supply voltage and a closing voltage are also conducted to the antenna of the RFID system, and a resistor is connected in parallel with each of the PIN diodes, which are series-connected with respect to direct current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.