| US 7,493,141 B2 | ||
| Common radio architecture for multi-mode multi-band applications | ||
| Michael L. Brobston, Allen, Tex. (US); Seong E. Kim, Plano, Tex. (US); and Lup M. Loh, Plano, Tex. (US) | ||
| Assigned to Samsung Electronics Co., Ltd., Suwon-si (Korea, Republic of) | ||
| Filed on Feb. 14, 2005, as Appl. No. 11/57,459. | ||
| Claims priority of provisional application 60/553104, filed on Mar. 15, 2004. | ||
| Prior Publication US 2005/0202842 A1, Sep. 15, 2005 | ||
| This patent is subject to a terminal disclaimer. | ||
| Int. Cl. H04B 1/10 (2006.01); H04M 1/00 (2006.01) | ||
| U.S. Cl. 455—552.1 [455/285; 455/302] | 20 Claims |
| 1. A multi-mode, multi-band mobile station for use in wireless networks operating under different air interface standards,
the mobile station comprising:
a plurality of low-noise amplifiers, wherein each of said plurality of low-noise amplifiers is optimized for use in a selected
frequency band; and
a near-zero intermediate frequency (NZIF) broadband image rejection mixer capable of receiving an amplified RF signal from
a selected one of said plurality of low-noise amplifiers and down-converting said amplified RF signal to produce a first analog
intermediate frequency (IF) signal.
|