Press releases

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September 1, 2009 Theta Microelectronics custom designed MIMO RFIC transceiver chip set for HD Wireless in production by AMIMON Inc. May 2, 2007 Dynamically adapting to signal conditions offers big savings on power, shows Theta May 2, 2007 VCO IP Lab Results of 0.18u VCO's March 12, 2007 Theta attracts authority on OFDM wideband digital communication systems January, 20, 2007 Theta's three new patents further strengthen IP portfolio January, 19, 2007 Co-founder of Theta Professor Tsividis Wins Award June 19, 2006 New Theta patent reduces power in wireless transceivers

Theta Microelectronics custom designed MIMO RFIC transceiver chip set for HD Wireless in production by AMIMON Inc.

Athens, Greece, September 1st, 2009 - An RFIC transceiver chip set designed by Theta Microelectronics for AMIMON Inc. has reached production status as part of AMIMON's HD Wireless transmitter and receiver product offering.

`` We are excited to see AMIMON's wireless video modem solution reach production status. The Theta RFIC chip set enables unprecedented performance and range. The underlying architecture of the RFIC transceiver design embodied in the AMIMON RFIC chip set demonstrates Theta's scalable and high dimensionality MIMO RFIC technology offering. This can be used in various wireless broadband connectivity and networking applications where off-the-shelf solutions fall short to provide the RF signal processing performance and quality needed." said Bruce Bourbon, CEO of Theta Microelectronics. .

``The AMIMON chipset, which includes the RFICs developed with Theta, has emerged as the leading wireless HD semiconductor solution in the market today. We are pleased with Theta's performance on this development `` commented Dr. Yoav Nissan Cohen, CEO of AMIMON.

About Theta Microelectronics

Theta Microelectronics (www.thetamicro.com) is a provider of Radio Frequency Integrated Design Services and related Intellectual Property circuit blocks including the development of advanced OFDM (Orthogonal Frequency-Division Multiplexing) and single carrier radio transceivers for mobile and fixed wireless broadband data and video connectivity applications. Founded in 2001, Theta Microelectronics has its principal operations in Athens, Greece.

About AMIMON

AMIMON is a fabless semiconductor company pioneering wireless uncompressed high-definition video for universal connectivity among CE video devices. AMIMON is a founding member of the WHDI ^TM (Wireless Home Digital Interface) Special Interest Group formed by leading CE companies to define a new industry standard for multi-room wireless uncompressed HDTV connectivity.

AMIMON is headquartered in Herzlia, Israel, with offices in Santa Clara, Calif., USA; Tokyo, Japan; and Seoul, Korea. More information is available at www.AMIMON.com and www.WHDI.org.

WHDI is a trademark of AMIMON, Ltd. All other trademarks or registered trademarks are those of their respective holders.

Dynamically adapting to signal conditions offers big savings on power, shows Theta

Athens, Greece, May 2007

Research conducted by Theta Microelectronics, and now published by Dr Yannis Tsividis as a white paper, shows significant reductions in average power dissipation in wireless receivers, using circuits that only dissipate the minimum power needed for the situation at hand.

The paper, Dynamic Power Dissipation in Wireless Receivers, describes several circuit techniques that make power savings of 50% or more possible. They are applicable to a variety of basic receiver building blocks, such as LNAs, mixers, filters, and VCOs.

Putting theory into practice, Theta has tested its techniques with six different receiver blocks, using two different receiver designs, at 2.5 GHz and 5 GHz. Analysis of these early results indicate that efficiencies even more drastic than the 50% power savings demonstrated are possible, with new designs developed by Theta based on this research.

The core techniques are now being extended to a range of portable wireless applications, all offering significantly extended battery life.

The savings achieved use the Theta dynamic techniques to vary power dissipation according to the properties of the desired signal and the interferers received. Both the signal overload ceiling and the noise floor are taken into account, as well as the spectral content of the desired signal. This includes cases where the same receiver handles different standards/protocols/modulation schemes and/or different frequency bands.

Dr Tsividis commented: "The extra overhead associated with the circuitry needed to make dynamic power dissipation possible is a small price to pay for the exceptional power savings we have obtained."

Dr Yannis Tsividis is Chief Scientific Officer of Theta Microelectronics, and also the Charles Batchelor Professor of Electrical Engineering at Columbia University. He has held positions at Motorola, AT&T Bell Laboratories, and the National Technical University of Athens, Greece.

The White Paper, which details the approach and the techniques developed, is available as a free download from Theta's website, www.thetamicro.com

VCO IP Lab Results of 0.18u VCO's

Athens, Greece and Palo Alto California, May 2007

Theta Microelectronics Inc, a leading provider of Intellectual Property circuit blocks and radio frequency integrated circuit design services for mobile and fixed wireless connectivity and video applications, announced today the availability of their Voltage Controlled Oscillator (VCO) designs as licensed IP circuit blocks. Theta's family of High Performance VCOs operates in specific bands from 3GHz to 13GHz and are designed in 0.18um BiCMOS SiGe Process.

Theta's VCOs feature phase noise better than -95dBc at 100KHz when operating at 12.0GHz, with a useful tuning range of 1 GHz. By incorporating an integrated LDO and programmable ALC, they allow for optimum performance and power consumption selection based on radio performance requirements. At 6GHz the phase noise is better than -105dBc at 100KHz while maintaining the tuning range.

"We are pleased to release these silicon- proven VCOs for use by our design services clients. High Frequency and high performance VCOs are found in the heart of all RFIC transceivers, and present one of the most challenging aspects of any transceiver design. This family of VCOs coupled with rest of our RFIC IP portfolio allows Theta to design RFICs based on any frequency plan that our customers prescribe for both access and client application, be that either WiMAX or 3G. This IP was designed to be used with our existing synthesizer IP, giving our customers significant time to market advantages and high level of confidence for the success of their transceiver design" said Theodore Varelas, V.P of Business Development of Theta.

The new IP blocks are immediately available in IBM BiCMOS 7WL process. Check IBM related web site for information,
www-03.ibm.com/chips/asics/foundry/rfit/theta.html

Theta attracts authority on OFDM wideband digital communication systems

12/03/2007
FOR IMMEDIATE RELEASE
Press Release

Theta Microelectronics, the developers of radio frequency integrated circuits for mobile and fixed wireless broadband, has appointed Dr Robin Miller as Vice-President of Engineering. Dr Miller joins the Theta R&D team based in Athens, Greece. Dr Miller joins Theta after helping to take award-winning microelectronics company Toumaz Technology from its formation in 2000 to a €26 million acquisition by Nanoscience Inc in five years. Before Toumaz, he was responsible for mixed signal integrated circuit design at Sony Semiconductor & Devices Europe.

Bruce Bourbon, Theta's Chairman and CEO welcomed Miller's appointment as a great asset to Theta, particularly his knowledge of OFDM wireless systems. "Robin's 30 years' experience in the semiconductor industry, including senior engineering positions at STMicroelectronics, Plessey and ITT/STL, will be put to good use, engineering RF solutions for Theta's worldwide customers."

"Dr Miller joins Theta Microelectronics at a time when we have recently won three major contracts" added Mr Bourbon.

One contract is a WiMAX RF development program commissioned by a leading semiconductor manufacturer. Another leverages Theta's own IP to create a short-range, high bandwidth transceiver for HDTV signals. The third integrates, on a single chip, all the functions in the intermediate frequency (IF) stage of a microwave point-to-point radio.

Dr Miller holds a PhD from the University of Brighton and an MSc from University College, London, both in the UK.

About Theta Microelectronics
Theta Microelectronics (http://www.thetamicro.com) is a provider of Intellectual Property circuit blocks and radio frequency integrated circuit design services focused on the development of advanced OFDM (Orthogonal Frequency-Division Multiplexing) radio transceivers for mobile and fixed wireless broadband data connectivity applications. Founded in 2001, Theta Microelectronics has its principal operations in Athens, Greece.

Theta's three new patents further strengthen IP portfolio

Palo Alto, CA (20/01/2007) - Theta Microelectronics Inc, a leading provider of RFIC Design Services and related Intellectual Property for mobile and fixed wireless connectivity and video applications, announced today that it has been granted the following US patents:

No. 7,049,875, entitled "One-Pin Automatic Tuning for MOSFET Resistors" by Yannis Tsividis;

No 7,075,377, "A Quadrature Voltage Controlled Oscillator with a Phase Shift Detector" by Emanuel Metaxakis; and

No 7,155,185, "Apparatus and Method for Eliminating DC Offset in a Wireless Communication Device" by Spyros Pipilos.

These patents address some of the main challenges of integrating low-cost single-chip Zero IF transceivers by addressing key design constrains such as: controlling in a die efficient way the process variations of MOSFET devices; eliminating the phase imbalance inherent in quadrature oscillators by an using analog techniques, thus enabling high performance OFDM transceiver design; and reducing of the DC offset present in Zero IF OFDM transceiver without any impact on the throughput performance of the radio.

"Theta's patents have been incorporated in our OFDM transceiver IP blocks design for WiFi and WiMAX applications. Theta IP and patent portfolio is central in our strategy to deliver low-cost, low-voltage and low-power solutions for OFDM radios" said Theodore Varelas, V.P. Business Development of Theta Microelectronics.

Theta's extensive intellectual property portfolio of proven circuit designs, coupled with its talented engineering team, provides its clients with competitive RFIC solutions and reference designs for their mobile computing, imaging, multimedia and computing markets.

About Theta Microelectronics, Inc
Theta Microelectronics is a provider of design services and related IP focused on the development of advanced OFDM radio frequency integrated circuits (RFIC transceivers) for mobile and fixed wireless broadband data connectivity applications. Founded in 2001, Theta Microelectronics, Inc is headquartered in Palo Alto, CA, and has its R&D operations in Athens, Greece.

Co-founder of Theta Professor Tsividis Wins Award

Athens, Greece (19/01/2007) - "Professor Yannis Tsividis is the recipient of the 2007 IEEE Gustav Robert Kirchhoff Award, "for contributions to circuits and MOS device modeling". According to IEEE, this award is given "for outstanding contributions to the fundamentals of any aspect of electronic circuits and systems that has a long-term significance or impact".
For more, visit IEEE Gustav Robert Kirchhoff Award web pages.

About Theta Microelectronics, Inc
Theta Microelectronics is a provider of design services and related IP focused on the development of advanced OFDM radio frequency integrated circuits (RFIC transceivers) for mobile and fixed wireless broadband data connectivity applications. Founded in 2001, Theta Microelectronics, Inc is headquartered in Palo Alto, CA, and has its R&D operations in Athens, Greece.

New Theta patent reduces power in wireless transceivers

"The idea behind Theta's dynamic, or adaptive, power dissipation is to eliminate power waste by making the power dissipation vary, according to the receiver's signal environment. Dynamic power dissipation is accomplished using the circuit techniques of gain scaling, impedance scaling, and bias scaling. These are in turn implemented automatically, based on the output of signal strength indicators that monitor the desired signal and interference. In summary, the dynamic-power receiver wins over a conventional (fixed-power) receiver by estimating the actual signal and interference power present and adjusting receiver power accordingly. This enables lower average power dissipation -- in some cases, much lower than for fixed-power receiver design," states Prof. Yannis Tsividis, Theta Microelectronics' Chief Scientific Advisor and Co-founder.

Theta's patented dynamic biasing technology is currently incorporated in its OFDM receiver IP blocks design for WiFi and WiMAX applications.

"A strong portfolio of intellectual property is central to our strategy of maintaining and protecting our cutting-edge low-voltage, low-power adaptive radio technology. We are fortunate to have in our team several creative and talented engineers and scientists who can come up with such inventions and revolutionize the way OFDM radios are being designed," said Theodore Varelas, General Manager of Theta.

Theta's extensive intellectual property portfolio of proven circuit designs, coupled with its talented engineering team, provides its clients with competitive RFIC solutions and reference designs for their mobile computing, imaging, multimedia and computing markets.

About Theta Microelectronics, Inc
Theta Microelectronics is a provider of design services and related IP focused on the development of advanced OFDM radio frequency integrated circuits (RFIC transceivers) for mobile and fixed wireless broadband data connectivity applications. Founded in 2001, Theta Microelectronics, Inc is headquartered in Palo Alto, CA, and has its R&D operations in Athens, Greece.