Electronic impedance tuner
US10566953B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 7, 2019 |
| Grant date | Feb 18, 2020 |
| Priority date | — |
| Expiry date | Jul 7, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H11/28
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An electronic impedance tuner comprises an adjusting circuit, N cell tuning circuits identical in structure and a switch controller. The adjusting circuit comprises a first microstrip line, a second microstrip line, a first capacitor, a second capacitor, a third capacitor, a first inductor, a second inductor and a first PIN diode. Each cell tuning circuit comprises a third microstrip line, a fourth microstrip line, a fourth capacitor, a fifth capacitor, a second PIN diode and a third capacitor. The capacitance Cd of the fourth capacitor meets the condition: The length d of the third microstrip line meets the condition: The electronic impedance tuner has the advantages of being small in size and low in cost while having a high coverage rate in the Smith chart.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.