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Description

The CHV2240 is a monolithic multifunction proposed for frequency generation at 38GHz. It integrates a K-band Voltage Controlled Oscillator, a Q-band frequency multiplier and buffer amplifiers. For performance optimisation, an external port (ERC) allows a passive resonator coupling to the oscillator (at half output frequency). This chip has been especially designed to be coupled to a high Q dielectric resonator. All the active devices are internally self biased.

The circuit is manufactured with the PHEMT process : 0.25?m gate length, via holes through the substrate, air bridges and electron beam gate lithography. It is available in chip form.

Main Features

■ K-band VCO + Q-band frequency multiplier

■ External resonator for centre frequency control and phase noise optimisation

■ High quality oscillator when coupled to a dielectric resonator

■ On-chip varactor for electronic control

■ Chip size 2.68x1.4 x 0.1 mm