Specific multi-band antenna impedance matching circuit and tire-pressure monitoring device using same
US10071605B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 20, 2017 |
| Grant date | Sep 11, 2018 |
| Priority date | — |
| Expiry date | Jul 20, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H2007/386
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A specific multi-band antenna impedance matching circuit and a tire-pressure monitoring device using same are disclosed. The antenna impedance matching circuit includes at least one first, one second and one third inductance unit and at least one first, one second and one third capacitance unit. The first capacitance unit is connected at a first end to first ends of the first and the second inductance unit and at a second end to a ground; the second inductance unit and the second capacitance unit are connected in series; the third inductance unit and the third capacitance unit are connected in parallel; and the third inductance unit is connected at a first end to a first end of the second capacitance unit and at a second end to the ground.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.