Semiconductor device with a filter formed of 3-element series-an

Details Semiconductor device with a filter formed of 3-element series-an Semiconductor device with a filter formed of 3-element series-an

1995-10-24

1997-12-09

Urban, Edward F.

Telecommunications

Receiver or analog modulated signal frequency converter

Noise or interference elimination

455289, 455339, 333204, H04B 110

Patent

active

056970870

ABSTRACT:
A 3-element series parallel resonator, which performs series resonance and parallel resonance at a predetermined frequency by a combination of three elements including an inductor and a capacitor of concentrated constants, is used as a filter. This design can reduce the circuit constant and permits a filter to be formed on a semiconductor substrate. Accordingly, various micro-wave devices, such as an amplifier which requires a filter, a frequency converter, a multiplier and signal switcher, can be designed into an MMIC on a single chip.

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"A Low-Current Ku-Band GaAs Monolithic Image Rejection Down-Converter", Yoshimasu, et al., IEEE Journal of Solid-State Circuits, No. 10, 1992, pp. 1448-1451.
"A New Receiver Filter Transformation", Helkey, No. 9, Microwave Journal, pp. 207, 208, 210, 212, 1990.

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