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US 2007/0191055 A1Published application
Circuit with reduced insertion loss and component comprising one such circuit
AssigneeEpcos AG
InventorsGunter Kovacs, Veit Meister, Florian Schnirch, Martin Bunner
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Abstract
An electrical circuit has at least two parallel signal paths connected to one another on the antenna side and for which a band reject filter corresponding to the transmission range is implemented in a second signal path for frequency-selective improvement of insertion loss in the transmission range of a first signal path. With a band reject filter, the signal is reflected to the junction of the parallel signal paths arising from the second signal path and thus is rerouted to the first signal path.
Claims23
Circuit
- with a first signal path (1) in which a band pass filter (BP) is realized for at least one transmission range,
- with a second signal path (2) in which a band reject filter (BS) with a corresponding cut-off region is provided,
- wherein the circuit can be connected directly or via another circuit to an antenna connection (A),
- wherein first and second signal paths run parallel to each other and are connected to each other on the antenna side,
- wherein the transmission range overlaps with the cut-off region, at least in part.
2 more elements
Dependencies are inferred from the claim text.