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US 7,609,116 B2Granted
Integrated amplifier arrangement
AssigneeEricsson Inc.
InventorsGregor Gerhard, Stefan Kern, Stefan Koch
Life of this patent
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Abstract
A millimetric-wave amplifier arrangement comprises a first amplifier whose output is connected to one input of the second amplifier via an adjustable attenuator. Both amplifiers are integrated on a single substrate.
Claims5
A millimeter wave amplifier arrangement, comprising:
- first and second amplifiers integrated on a common substrate, the first amplifier having an output connected to an input of the second amplifier via a controllable attenuator, the controllable attenuator including a Lange coupler having one port connected to the output of the first amplifier, and an additional port connected to the input of the second amplifier, the Lange coupler being integrated with the amplifiers on the common substrate, the controllable attenuator also including controllable resistors arranged outside of the common substrate and connected to a third and a fourth port of the Lange coupler via conducting air bridges, the controllable resistors being controlled by a single control circuit connected to the additional port of the Lange coupler.
Dependencies are inferred from the claim text.