WJ Announces the Industry's First Multi-Protocol EPC Class 0/1 RFID Card in the Ultra-Compact PCMCIA Type II Package.

SAN JOSE, Calif. -- Breakthrough Size, Performance and Form Factor Enable Ease of Integration for all Types of RFID Platforms - Production Shipments to Commence in Q4 2004

WJ Communications, Inc. (NASDAQ:WJCI), a leading designer and supplier of RF semiconductors and multi-chip modules, today announced a technological breakthrough for small, ubiquitous RFID readers--the multi-protocol MPR 6000 RFID Card in a standard PCMCIA Type II package. The MPR 6000 RFID Card implements the EPCglobal(TM) Class 0, and Class 1 RFID standards and is also designed for UHF Gen 2 functionality via a firmware upgrade. The reader will work with any standard Type II PCMCIA card socket and is ideal for printer, handheld, fixed, applicator and other integrated RFID systems where performance and cost are critical. The MPR 6000 RFID Card can provide many existing bar code reader and printer products with PCMCIA Type II slots with RFID Class 0 and Class 1 capability. The standard Type II PCMCIA package ensures ease of use and simplifies system engineering and integration tasks, just insert the MPR 6000 card into a standard PCMCIA Type II socket and operate the RFID reader through a simple graphical user interface. In addition, the MPR 6000 RFID Card enables anyone with a computer, laptop computer, or Tablet PC equipped with a Type II PCMCIA slot to read and write/program RFID tags and enables small business and consumer applications for RFID. WJ will begin production shipments of the MPR 6000 RFID Card in Q4, 2004, and the product will be sold to OEMs and distribution. WJ will have live demonstrations of the MPR 6000 RFID Card at the Frontline Solutions 2004 Expo held at Navy Pier in Chicago, IL, September 13-15, 2004, booth #916.

"The need for compact, capable RFID readers with low power consumption is being driven by the industry's need for more ubiquitous, lower cost RFID reader products of all types. The MPR 6000 RFID Card we believe is unique in enabling these applications and in expanding the RFID market," said Michael Farese, Chief Executive Officer and President for WJ Communications. "The MPR 6000 RFID Card will provide small and medium size businesses in addition to large companies better access to RFID equipment and applications. The ability of the MPR 6000 RFID Card to upgrade existing bar code equipment and its ability to read both EPC(TM) Class 0 and EPC(TM) Class 1 RFID tags is an important advantage for business users. The MPR 6000 RFID Card is a technological breakthrough enabling business users and personal consumers alike. We believe that the MPR 6000 RFID Card will stimulate the deployment of RFID applications in business and the rate of RFID adoption."

The MPR 6000 is based on the EPC Class 0 and EPC 1 air interface protocols. Each MPR can read EPC Class 0 and EPC Class 1 tags and program/write EPC Class 1 tags. The MPR 6000 has been tested with various RFID tag brands, and each reader has two separate antenna ports. Each selectable antenna port performs both transmit and receive functions simultaneously. Multiple ports and MMCX antenna connections guarantee the flexibility to use standard or custom antennas based on specific system requirements. Control of the reader is performed via high-speed parallel communications over the PCMCIA bus through the standard 68-pin PCMCIA connector. The reader operates on only 5 volts and the PC Card(TM) format greatly simplifies RFID reader installation, setup and operation. The compact PCMCIA type II form factor is realized using highly integrated WJ semiconductors.

About WJ Communications

WJ Communications Inc. is a leading RF semiconductor company focusing on the design and manufacture of high-quality devices and multi-chip modules (MCMs) for telecommunications systems worldwide. WJ's highly reliable amplifier, mixer, RF IC and MCM products are used to transmit and receive signals that enable current and next generation wireless and wireline services. For more information visit www.wj.com.

About PCMCIA

PCMCIA (Personal Computer Memory Card International Association) is an international standards body and trade association with over 200 member companies that was founded in 1989 to establish standards for Integrated Circuit cards and to promote interchangeability among mobile computers where ruggedness, low power, and small size were critical. PCMCIA promotes the interoperability of PC Cards not only in mobile computers, but in such diverse products as digital cameras, cable TV, set-top boxes, and automobiles. For more information visit http://www.pcmcia.org/index.htm.

About EPC Global

EPCglobal Inc. is a joint venture between EAN International and the Uniform Code Council (UCC). EPCglobal is leading the development of industry-driven standards for the Electronic Product Code(TM) (EPC) to support the use of Radio Frequency Identification (RFID) in today's fast-moving, information rich trading networks. EPC global is a member-driven organisation comprised of leading firms and industries focused on creating global standards for the EPCglobal Network(TM) with the goal of increased visibility and efficiency throughout the supply chain and higher quality information flow between your company and its key trading partners. For more information visit http://www.epcglobalinc.org.

About Frontline Solutions Conference and Expo

The Frontline Solutions Conference and Exposition is the largest gathering of the world's leading Auto-ID, RFID, and mobility experts. This technical industry forum is the only event that provides the latest automatic identification and supply chain mobility solutions, technology focused education, and networking opportunities -- in one place, at one time. To learn more, visit www.frontlineexpo.com.

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Safe Harbor Statement under the Private Securities Litigation Reform Act of 1995: This press release contains forward-looking statements including financial projections, statements as to the plans and objectives of management for future operations, and statements as to the Company's future economic performance, financial condition or results of operations. These forward-looking statements are not historical facts but rather are based on current expectations and our beliefs. The Company's actual results may differ materially from those projected in these forward-looking statements as a result of a number of factors including those described from time to time in the Company's filings with the Securities and Exchange Commission. Readers of this release are cautioned not to place undue reliance on these forward-looking statements. The Company undertakes no obligation to publicly update or revise the forward-looking statements contained herein to reflect changed events or circumstances after the date of this press release.