ANADIGICS, Inc. (Nasdaq: ANAD), a leading supplier of wireless and broadband communications solutions, has been granted its third patent for the development of a wireless multi-band amplifier circuit. US Patent No. 6,501,331 was granted for the development of a GaAs MMIC dual-band amplifier for use in wireless handsets for operation at either 800MHz or the 1900MHz band to provide gain and input/output impedance.
Switching impedance networks are used at the input and output of the amplifier to provide matching input impedance and desired output impedance for operation in the two bands. Switching impedance networks are also used between any successive stages of the amplifier to provide proper inter-stage impedance.
The dual band amplifier includes a bias control circuit which biases the amplifier to operate in A, B, AB or C mode. The amplifier can be used for the AMPS 800 or the GSM 900 operation or any other cellular operation such as the PCS 1900, and it can be switched between the two operations by simply applying a proper control signal to the amplifier.
For additional information, contact ANADIGICS by phone (908) 668-5000 or FAX (908) 668 5132 or visit the Company's Web site at: www.anadigics.com
ANADIGICS (NASDAQ: ANAD) designs and manufactures radio frequency integrated circuit (RFIC) solutions for growing broadband and wireless communications markets. The Company's innovative high frequency RFICs enable manufacturers of communications equipment to enhance overall system performance while reducing manufacturing cost and time to market. By utilizing state-of-the-art manufacturing processes for its RFICs, ANADIGICS achieves the high-volume and cost-effective products required by leading companies in its targeted high-growth communications markets. ANADIGICS was the first GaAs IC manufacturer to receive ISO 9001 certification.
Source: ANADIGICS
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