| US 7,595,759 B2 | ||
| Handheld electronic devices with isolated antennas | ||
| Robert W. Schlub, Campbell, Calif. (US); Robert J. Hill, Salinas, Calif. (US); Juan Zavala, Watsonville, Calif. (US); and Ruben Caballero, San Jose, Calif. (US) | ||
| Assigned to Apple Inc., Cupertino, Calif. (US) | ||
| Filed on Jan. 04, 2007, as Appl. No. 11/650,071. | ||
| Prior Publication US 2008/0165063 A1, Jul. 10, 2008 | ||
| Int. Cl. H01Q 1/24 (2006.01) | ||
| U.S. Cl. 343—702 [343/700 MS] | 3 Claims |
| 1. Wireless communications circuitry in a handheld electronic device comprising:
first and second wireless transceiver circuits that transmit and receive radio-frequency signals;
first and second transmission lines associated respectively with the first and second wireless transceiver circuits for conveying
the radio frequency signals;
first and second antennas, wherein the first antenna is connected to the first transmission line and wherein the second antenna
is connected to the second transmission line; and
an isolation element associated with the first antenna that resonates in a frequency band in which the second antenna operates
and reduces interference between the first antenna and the second antenna during simultaneous antenna operation, wherein the
first antenna comprises a hybrid planar-inverted-F and slot antenna and wherein the isolation element is formed as part of
a planar-inverted-F resonating element in the hybrid planar-inverted-F and slot antenna.
|