SAN JOSE, Calif.—(BUSINESS WIRE)—October 19, 2007— WJ Communications, Inc. (NASDAQ: WJCI), a leading designer and supplier of radio frequency (RF) products and solutions for the wireless infrastructure and radio frequency identification (RFID) reader markets, today announced its expansion of the high-dynamic range, low-cost WJZ diode mixer series, a family of second source frequency mixers created as pin-for-pin drop in replacement for popular diode-based frequency mixers. Seven new products; WJZ1030H, WJZ1050H, WJZ1070H, WJZ3000, WJZ3010, WJZ3020, and WJZ3030 provide a wider selection and greater flexibilities for different needs and applications. The attractiveness of the WJZ family centers in the ability to provide a stable supply of devices, particularly during a cost reduction or redesign phase of a customer's product lifecycle. These new low-cost mixers can be used in a wide variety of applications such as frequency up/down conversion, and modulation/demodulation for receivers and transmitters while delivering superior performance.

"Market response to our second source family of products, in particular the WJZ diode mixer family, has been tremendous. The growing customer demand for cost-sensitive and highly reliable RF mixer solutions has prompted us to develop more products in this category." said Morteza Saidi, Vice President of Engineering at WJ Communications. "Continuing the excellent performance with the current WJZ products, the new WJZ devices have extraordinary features in high linearity, and lower signal attenuation for reduced conversion loss."

Product Overview

The WJZ mixer products are passive double-balanced diode-ring mixers that provide high dynamic range performance in a RoHS-compliant surface mount package that require no matching. The family include models with a wide-range of RF, LO, and IF ranges, optimized for LO levels from +7 to +17dBm. The details for each model are given below:

                                               Frequency Range (MHz)
Part No.
                                               RF      LO      IF
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WJZ1030H                                        1-2500  1-2500  1-2000
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WJZ1050H                                       10-3000 10-3000 10-1500
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WJZ1070H                                       10-1000 10-1000 10-1000
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WJZ3000                                        10-1500 10-1500 10-1000
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WJZ3010                                        10-1000 10-1000 10-1000
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WJZ3020                                         10-250  10-250  10-250
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WJZ3030                                         10-500  10-500  10-500
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                           LO     Input Conversion L-R        Package
Part No.                    Power  IP3   Loss       Isolation  Style
                           (dB)   (dBm) (dB)       (dB)
-------------------------- ------ ----- ---------- ---------- --------
WJZ1030H                       17  27.5        6.7         42 S-PAK-3
-------------------------- ------ ----- ---------- ---------- --------
WJZ1050H                       17    24        6.5         39 S-PAK-3
-------------------------- ------ ----- ---------- ---------- --------
WJZ1070H                        7    17        7.3         55 S-PAK-3
-------------------------- ------ ----- ---------- ---------- --------
WJZ3000                        13    20        7.2         44 MS-PAK-6
-------------------------- ------ ----- ---------- ---------- --------
WJZ3010                         7    19          7         53 MS-PAK-6
-------------------------- ------ ----- ---------- ---------- --------
WJZ3020                         7    19        6.9         64 MS-PAK-6
-------------------------- ------ ----- ---------- ---------- --------
WJZ3030                         7    20        6.8         60 MS-PAK-6
-------------------------- ------ ----- ---------- ---------- --------

Value proposition

Utilizing WJ's RF expertise and leadership in wireless infrastructure, WJ developed the WJZ diode mixer family. The key product features include:

-- Broadband performance - requires no matching

-- High linearity: Improved IIP3 performance

-- Reduced Conversion Loss: lower signal attenuation

-- Lower CL also means lower NF: critical for receiver sensitivity

-- High LO-RF isolation

-- No internal solder connections

-- Lower cost than competition

-- No external bias circuitry - consists of all passive components

-- Surface mount RoHS-complaint Package

Positive Market Feedback

WJ has shipped over 1.5 million of the current diode mixers to a wide range of customers targeting an array of applications. The new WJZ diode mixers are presently sampling with key strategic customers; customer feedback has been very positive with special emphasis to the high performance and cost-saving benefit. In addition, numerous customers appreciate that the WJZ family is pin-to-pin compatible with Mini-Circuits' SYM, RMS and ADE series mixers, providing an alternative resource with a steady flow of product.

Target Applications

-- Ideally for broad range of wireless applications

-- Up/down frequency conversion

-- Modulation and demodulation for receivers and transmitters for 2.5G and 3G GSM/CDMA/W-CDMA