A function-switchable ultra-wideband feed network

Abstract

The invention discloses a function-switchable ultra-wideband power feed network, comprising a first double-section ultra-wideband Wilkinson power divider, a second double-section ultra-wideband Wilkinson power divider, a third double-section ultra-wideband power divider, and a third double-section ultra-wideband power divider Wilkinson power divider, multimode resonator, reference phase shift line unit, first open-circuit Lange coupler, second open-circuit Lange coupler, first short-circuit Lange coupler, second short-circuit Lange coupler, first single-pole double-throw switch S1 and a second SPDT switch S2. The invention relates to the field of antenna communication. By rationally configuring each double-section ultra-wideband Wilkinson power splitter, open-circuit and short-circuit Lange couplers, multi-mode resonators and reference phase-shift line units, a dual-polarization feeder that can be flexibly switched is formed. The circuit structure of the electric or circularly polarized feeding network reduces the area occupied by the antenna feeding network, realizes the multi-function of the antenna and reduces the production cost.

Description

technical field [0001] The invention relates to the field of antenna communication, more specifically, it relates to a function-switchable ultra-wideband feeding network. Background technique [0002] With the development of communication technology, the capacity of communication system has increased, and the speed of information transmission has become faster and faster. Traditional linearly polarized antennas are difficult to meet the requirements. Therefore, the broadband and miniaturization of the antenna is an important development direction of the antenna in the future, which has extremely high application value and research significance. In order to make the antenna develop in the direction of broadband and miniaturization, the polarization mode of the antenna is often designed as multi-polarization modes such as dual polarization and circular polarization. At the same time, different polarized antennas are also used in different scenarios. For example, dual-polarize...

AI Technical Summary

Problems solved by technology

If you want to have different polarization modes without changing the antenna structure, you can generally achieve polarization switching by designing multiple different feed circuits, but designing multiple different feed circuits on the substrate will not only increase the antenna Substrate area and production cost will also affect the installation of the antenna

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