Invention Grant
- Patent Title: Antenna switching circuitry for a worldphone radio interface
- Patent Title (中): 用于世界电话无线电接口的天线切换电路
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Application No.: US13944972Application Date: 2013-07-18
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Publication No.: US09118100B2Publication Date: 2015-08-25
- Inventor: Nadim Khlat
- Applicant: RF Micro Devices, Inc.
- Applicant Address: US NC Greensboro
- Assignee: RF Micro Devices, Inc.
- Current Assignee: RF Micro Devices, Inc.
- Current Assignee Address: US NC Greensboro
- Agency: Withrow & Terranova, P.L.L.C.
- Main IPC: H04B1/44
- IPC: H04B1/44 ; H04M1/00 ; H01P1/15 ; B81B7/02

Abstract:
This disclosure relates to radio frequency (RF) front-end circuitry. In one embodiment, the RF front-end circuitry is arranged to provide antenna switching functionality for a Worldphone or a World tablet. The RF front-end circuitry may include front-end switching circuitry, a multiple throw microelectromechanical switch (MTMEMS), a first antenna port, a second antenna port, and a third antenna port. The front-end switching circuitry of the RF front-end circuitry is configured to selectively couple one or more RF ports to either the first antenna port or the second antenna port. The MTMEMS is configured to selectively couple a pole port coupled to the third antenna port to any one of a set of throw ports, which may be RF ports or may be coupled to RF ports. As such, the RF front-end circuitry is capable of providing antenna switching functionality between three antennas for a Worldphone or World tablet.
Public/Granted literature
- US20130337753A1 ANTENNA SWITCHING CIRCUITRY FOR A WORLDPHONE RADIO INTERFACE Public/Granted day:2013-12-19
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