The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 31, 2007
Filed:
May. 03, 2002
William J. Mcfarland, Los Altos, CA (US);
Keith Onedera, Berkeley, CA (US);
Arie Shor, Sunnyvale, CA (US);
David Su, Mountain View, CA (US);
Manolis Terrovitis, Berkeley, CA (US);
John Thomson, Union City, CA (US);
Masoud Zaragari, Cupertino, CA (US);
William J. McFarland, Los Altos, CA (US);
Keith Onedera, Berkeley, CA (US);
Arie Shor, Sunnyvale, CA (US);
David Su, Mountain View, CA (US);
Manolis Terrovitis, Berkeley, CA (US);
John Thomson, Union City, CA (US);
Masoud Zaragari, Cupertino, CA (US);
Atheros Communications, Inc., Santa Clara, CA (US);
Abstract
A dual band radio is constructed using a primary and secondary transceiver. The primary transceiver is a complete radio that is operational in a stand alone configuration. The secondary transceiver is a not a complete radio and is configured to re-use components such as fine gain control and fine frequency stepping of the primary transceiver to produce operational frequencies of the secondary transceiver. The primary transceiver acts like an intermediate frequency device for the secondary transceiver. Switches are utilized to divert signals to/from the primary transceiver from/to the secondary transceiver. The switches are also configured to act as gain control devices. Antennas are selected using either wideband or narrowband antenna switches that are configured as a diode bridge having high impedance at operational frequencies on control lines that bias the diodes.