Two-Antenna Quad-Beam 11-15 GHz Phased Array RFIC Targeted at Satellite Systems and Advanced Radars

Jul 02, 2009
New phased array receiver from UC San Diego's Gabriel Rebeiz and Jazz Semiconductor.

(PhysOrg.com) -- The University of California, San Diego (UCSD) and Jazz Semiconductor, a Tower Group Company, today announced that they have collaborated to develop a two-antenna quad-beam RFIC phased array receiver covering the 11-15 GHz frequency range. First time success was achieved using Jazz Semiconductor’s high performance 0.18-micron SiGe BiCMOS process and its own proprietary models, kit and DIRECT MPW (Multiproject Wafer) program. The chip was designed and tested by the Electrical and Computer Engineering School at UCSD.

“UCSD believes that the quad-beam phased array receiver will enable high-performance phased arrays for satellite communications by integrating many functions on the same silicon and replacing several GaAs ICs, drastically lowering the cost of phased array assembly,” said Dr. Gabriel M. Rebeiz, Professor of Electrical Engineering at UC San Diego’s Jacobs School of Engineering, a co-developer of this chip. “Our success in developing this first-of-a-kind chip depended largely on Jazz’s 0.18-micron SiGe BiCMOS process, models and design kit. We view Jazz as a leading specialty foundry with unrivaled design enablement capabilities.”

This is the first demonstration of a single silicon chip capable of producing four simultaneous beams from two different antennas, and together with all the necessary CMOS controlling circuits. Alternatively, this chip can be connected to a single antenna with two different polarization ports, thereby allowing the formation of four simultaneous beams of different polarizations. The four simultaneous phased-array beams can be all at the same frequency, or placed randomly at any frequency in the 11-15 GHz range. Each beam can operate over an instantaneous bandwidth of > 1 GHz with 4-bit amplitude and phase control. As the chip creates four simultaneous beams from the antennas, these beams can point to different areas in the sky (i.e. different angles), preventing the signal gathered in beam 1 to couple to beam 2, and enables at least 30 dB isolation between the two beams.

The SiGe BiCMOS chip operates from a 3.3 V supply, is only 2.4x4.3 mm2, replaces at least 8 GaAs chips, and allows a new generation of high-performance multi-beam phased arrays for X to Ku-Band applications. The SBC18HX process offers high-performance 0.18-micron SiGe bipolar and high quality passive elements combined with high density 0.18-micron CMOS, ideal for high-speed networking and millimeter wave applications. This leading edge process achieves an Ft of 155GHz and an Fmax of 200GHz.

"We are pleased with the results achieved by UCSD with its RFIC quad-beam phased array receiver and are excited to enable an innovative technology designed to address the needs of high data-rate communications and satellite-based systems markets,” said David Howard, Executive Director of New Product Technology at Jazz Semiconductor. “This collaboration demonstrates the capabilities of the highly advanced specialty wafer processes, models and kits we offer to our customers.”

“The chip is currently being transitioned by the U.S. Office of Naval Research to a 1000+ element phased-array capable of four simultaneous beams at Ku-Band, and a contract to a leading U.S. defense company was recently issued based on this chip,” added Dr. Rebeiz.

The chip is available from UC San Diego and interested parties should contact Prof. Gabriel M. Rebeiz at rebeiz at ece.ucsd.edu.

Provided by University of California - San Diego (news : web)

Explore further: New oscillator for low-power implantable transcievers

add to favorites email to friend print save as pdf

Related Stories

New silicon germanium technology blooms at IBM

Aug 05, 2005

New technology for silicon germanium processors promises to reduce the cost of mobile consumer products, advance high-bandwidth wireless communications, and push such innovations as collision-avoidance automobile radar.

Recommended for you

US official: Auto safety agency under review

1 hour ago

Transportation officials are reviewing the "safety culture" of the U.S. agency that oversees auto recalls, a senior Obama administration official said Friday. The National Highway Traffic Safety Administration has been criticized ...

Out-of-patience investors sell off Amazon

2 hours ago

Amazon has long acted like an ideal customer on its own website: a freewheeling big spender with no worries about balancing a checkbook. Investors confident in founder and CEO Jeff Bezos' invest-and-expand ...

Ebola.com domain sold for big payout

2 hours ago

The owners of the website Ebola.com have scored a big payday with the outbreak of the epidemic, selling the domain for more than $200,000 in cash and stock.

Hacker gets prison for cyberattack stealing $9.4M

6 hours ago

An Estonian man who pleaded guilty to orchestrating a 2008 cyberattack on a credit card processing company that enabled hackers to steal $9.4 million has been sentenced to 11 years in prison by a federal judge in Atlanta.

Magic Leap moves beyond older lines of VR

7 hours ago

Two messages from Magic Leap: Most of us know that a world with dragons and unicorns, elves and fairies is just a better world. The other message: Technology can be mindboggingly awesome. When the two ...

User comments : 0