WiSpry obtains key patent for MEMS variable capacitors

IRVINE, USA: WiSpry Inc., the leader in tunable radio frequency (RF) semiconductor products for the wireless industry, announced that the Company's patent application for Micro-Electro-Mechanical System (MEMS) Variable Capacitor Apparatuses, Systems and Related Methods has been granted by the U.S. Patent and Trademark Office (Patent number 7,361,962).

As wireless device, RF interfaces continue toward higher complexity with additional bands and modes, tunable RF solutions become critical to achieving a practical balance of performance, size and cost. The premier technology for dynamic programmability is RF -MEMS.

MEMS varactors are miniscule variable capacitors built using semiconductor fabrication techniques which can be directly integrated into semiconductor chips.

Their capacitance is controlled by varying the gap between two plates, typically by means of an electrostatic force. This dynamic capacitance change enables RF designers to match and/or to tune the front-end filters, switch and antennas of their wireless device.

"We continue to aggressively pursue protection for key technology that enables our breakthrough product roadmap," said Dr. Art Morris, co-founder & CTO of WiSpry.

"Compared to conventional RF technologies, WiSpry's tunable RF capability, featuring RF-MEMS on CMOS, offers lower power consumption, less insertion loss, higher linearity, minimized cost and smaller form factor."