Frequency division phase shifter, feed network and base station antenna

Abstract

The invention provides a frequency division phase shifter, a feed network and a base station antennae. The frequency division phase shifter comprises a cavity, and a first phase shift network, a second phase shift network and a combining network which are arranged in the cavity; the cavity comprises a phase shift cavity and a combining cavity which intersects with the phase shift cavity and has inner cavities communicated with each other; clamping grooves used for clamping circuit boards of corresponding networks are formed in respective opposite inner walls of the combining cavity and the phase shifting cavity; the combining network comprises a combining circuit board, a combining circuit and a ground plane, the combining circuit and the ground plane are arranged on the two faces of the combining circuit board respectively, the ground plane is welded to the combining cavity, and the first phase shift network and the second phase shift network are arranged on the two sides of the ground plane respectively. The combining cavity is communicated with the phase shift cavity in the middle of the phase shift cavity, and the phase shift networks of different frequency bands can be electrically connected with the combining network from the two sides of the combining network, so that the assembly complexity of the microwave device is reduced. The two phase shift networks are electrically isolated through the ground plane, resonance is avoided, and the electrical performance is improved.

Description

Technical field [0001] The present invention relates to the technical field of the antenna, specifically, the present invention relates to a frequency divider phase shifter, an antenna feeding network and a base station. Background technique [0002] With the development of communication technology, operators continue to introduce new work and new work standard spectrum, a multi-band antenna sharing needs, as well as space-saving day side, site sharing, frequency division combiner / double duplexes multiplexed into a wide array of preferred embodiment. [0003] The combiner and the phase shifter devices can be integrated as a part of the antenna assembly greatly reduced, reducing the losses cascade network, to enhance the integration of the antenna, ultimately reducing the cost of production division multiplexing antenna, the antenna radiation gain is improved the goal of. Currently, there are many patents have been proposed different combiner and phase shifter integration scheme...

AI Technical Summary

Problems solved by technology

At present, many patents have proposed different integration schemes of combiners and phase shifters, but each scheme needs to introduce an adapter or jumper to connect phase shifting circuits in different microwave cavities or combine them. The circuit is connected with the phase-shifting circuit, which increases the assembly complexity of the device to a certain extent.

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