Integrated circuit including a surface acoustic wave transformer

Details Integrated circuit including a surface acoustic wave transformer Integrated circuit including a surface acoustic wave transformer

1991-08-29

1993-11-23

Kuntz, Curtis

Telecommunications

Receiver or analog modulated signal frequency converter

Frequency modifying or conversion

455333, 333 25, 333193, 310313R, H04B 126, H03H 9145

Patent

active

052652670

ABSTRACT:
In a radio transceiver (100), an IF stage (110) is formed on a single substrate. A balanced or image rejection mixer (204) having two pairs of inputs and a pair of outputs is integrated on an IC substrate (202). Disposed on the IC substrate are SAW transformers (210, 212 and 214) which provide a desired phase transformation. The SAW transformers comprise piezoelectric layers (228) and metallization layers (230) which are suitably patterned to provide the desired phase transformation and frequency selectivity.

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patent: 5091708 (1992-02-01), Bezjak

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