Microstrip antenna having a plurality of broken loops
US5646633A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 5, 1995 |
| Grant date | Jul 8, 1997 |
| Priority date | — |
| Expiry date | Apr 5, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q7/00
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The microstrip antenna includes a conductive ground plane and a number of conductive broken loops which extend from a first end to an opposed second end. The first ends of each of the broken loops are connected to a feedline conductor for transmitting and receiving signals. In addition, the second end of each broken loop is spaced apart from the respective first end of the broken loop to define the broken loop. Further, a layer of dielectric material, such as a printed circuit board, can be disposed between the ground plane and a plurality of broken loops. Thus, by appropriately selecting the respective lengths of the broken loops, the frequency range over which the microstrip antenna transmits and receives signals can be tuned. In addition, the microstrip antenna is relatively thin so as to be disposed flush with the surface of a mounting platform within a relatively shallow cavity. In addition, the microstrip antenna can be shaped to conform with the complexly shaped mounting platform while still providing reception and transmission over a broadband of frequencies.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.