Transmitting and receiving arrangement for portable appliances.
Abstract
PCT No. PCT/EP90/01227 Sec. 371 Date Apr. 27, 1992 Sec. 102(e) Date Apr. 27, 1992 PCT Filed Jul. 26, 1990 PCT Pub. No. WO91/02386 PCT Pub. Date Feb. 21, 1991.An antenna for transmitter and receiver of a portable radio appliance (cordless telephone, mobile telephone, pager, telepoint appliance and so forth) essentially consists of two sheet-metal angles (2,3) which are arranged adjacently to one another. One of the two elements is excited with radio-frequency currents by means of a coaxial feedline (4). The second sheet-metal angle (3) is excited by parasitic coupling from the first sheet-metal angle (2). The sheet-metal angles (2,3) are identically oriented and the distance between them is much shorter in the end area than at the bending edge of the apex line. This results in high reactive currents and low impedance. The antenna can also be modified by feeding both sheet-metal angles (2,3), dividing it into two identical part-antennas or several sheet-metal angles. The sheet-metal angles can consist of metal foils which are applied to a plastic housing. In addition, an embodiment with wire angles is also possible.
Term
Term ended
Projected expiry passed 26 July 2010, 16.2 years ago.
- Priority
- Filed
- Published
- Projected expiry
- Today
10 members in 6 offices
Priority claims1
| Document | Office | Kind | Date |
|---|---|---|---|
| 181589 | Austria | A |
Members10
| Document | Office | Kind | |
|---|---|---|---|
| ATA181589A | Austria | A | |
| WO9102386A1 | World Intellectual Property Organization (WIPO) | A1 | |
| AT393054B | Austria | B | |
| EP0484454A1 | European Patent Office (EPO) | A1 | |
| JPH05500889A | Japan | A | |
| EP0484454B1 | European Patent Office (EPO) | B1 | |
| AT112421T | Austria | T | |
| ATE112421T1This record | Austria | T1 | |
| DE59007355D1 | Germany | D1 | |
| US5365246A | United States of America | A |
1 legal event, as the office reported them to INPADOC
Events
| Event | Code | |
|---|---|---|
| Ceased due to non-payment of the annual feeCeasedREN | REN |
Numbers
- Application
- 90913383
Titles2
- German
- SENDE- UND/ODER EMPFANGSANORDNUNG FÜR TRAGBARE GERÄTE.
- English
- TRANSMITTING AND/OR RECEIVING ARRANGEMENT FOR PORTABLE DEVICES.
Classification
- CPC, 3
- H01Q9/0421
- H01Q1/243
- H01Q19/005
- IPC, 3
- H01Q1 24
- H01Q9 04
- H01Q19 00