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US 12,700,879 B2Granted
Mobile wireless receiver
AssigneeSennheiser electronic GmbH & Co. KG
InventorsChristian Krüger, Marvin Schwarz
Life of this patent
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Abstract
A mobile wireless receiver is provided comprising an HF input, an intermediate-frequency output, a first and second mixer, which are each operated in common mode with a frequency of a local oscillator, a first balun circuit, which is coupled to the HF input and a second balun circuit, which is coupled to the intermediate-frequency output, a first common mode trap, which is coupled to the first balun circuit and the first and second mixer and a second common mode trap, which is coupled to the second balun circuit and the first and second mixer.
Claims2
A mobile wireless receiver comprising:
- an HF input,
- an intermediate frequency output,
- a first and second mixer, which are each operated in common mode with a frequency of a local oscillator,
- a first balun circuit, which is coupled to the HF input and a second balun circuit, which is coupled to the intermediate-frequency output,
- a first common mode trap, which is coupled to the first balun circuit and the first and second mixer and
- a second common mode trap, which is coupled to the second balun circuit and the first and second mixer,
- wherein,
- the first and second common mode trap each comprise a Y circuit with two coils and a capacitor or a Y circuit with two capacitors and a coil,
- wherein one end of the Y circuit is connected to a pole of a differential signal and the other end of the Y circuit is coupled to earth.
6 more elements
Dependencies are inferred from the claim text.