Patent ID: 11967757
Assignee: BEIJING UNISTRONG SCIENCE & TECHNOLOGY CO., LTD.
Field: Telecommunications (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 3:
4. The helical antenna according to claim 2, wherein the signal processing circuit comprises a duplex filter, a low noise amplifier, a duplex combiner and a driver amplifier, wherein,
an input terminal of the duplex filter is electrically connected to the output terminal of the feed network, and an output terminal of the duplex filter is electrically connected to an input terminal of the low noise amplifier;
an input terminal of the duplex combiner is electrically connected to an output terminal of the low noise amplifier, and an output terminal of the duplex combiner is electrically connected to an input terminal of the driver amplifier; and
an output terminal of the driver amplifier is configured to be electrically connected to a satellite positioning receiver.