Frequency-tunable and slot-fed planar antenna, and satellite-based positioning receiver comprising such an antenna
US10454173B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 17, 2015 |
| Grant date | Oct 22, 2019 |
| Priority date | — |
| Expiry date | Apr 13, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q9/145
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A Frequency-tunable and slot-fed planar antenna is proposed. The antenna includes resonant patch, a first dielectric layer, a ground plane having a first slot for each linear polarization, a second dielectric layer and a transmission line having, for each first slot, an end strand extending beneath the first slot. The antenna is frequency tunable for each linear polarization through at least one variable capacitance element. The matching of the antenna varies, for each linear polarization, as a function of a bias voltage applied to the variable capacitance element(s). The antenna includes, for each linear polarization, at least one second slot extending along the first slot. The end strand of the transmission line extends between the first slot and second slots. The at least one second slot creates an additional resonance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.