Wireless transceivers with filter arrangement for WiFi and WiMAX coexsistence

US8681748B2 · kind B2 · utility

Assignee

• Broadcom Corporation · US

Inventors

• Kamesh Medapalli · San Jose, US
• Erik Richard Stauffer · Sunnyvale, US
• Bertrand Hochwald · South Bend, US
• William Fujimoto · San Jose, US
• Yossi Saada · Haifa, IL
• Richard Compton · Beaverton, US

Key dates

• Filing date: Aug 17, 2011
• Grant date: Mar 25, 2014
• Expiry date: Feb 22, 2032

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04B1/525
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

Embodiments provide WiFi and WiMAX tailored transceiver radio frequency (RF) filtering techniques and configurations to enable coexistence between WiFi and WiMAX transceivers operating in close proximity. In particular, embodiments provide filtering techniques to reject emissions from WiMAX into WiFi, and vice versa. The filtering techniques eliminate the need for additional isolation between WiMAX and WiFi antennas (approximately 50 dB), which is beyond what is achievable in practice. Embodiments can be tailored according to different use cases of the WiFi and WiMAX transceivers (e.g., fixed CPE, portable router, smart phone with tethering).