Dual-frequency antenna and terminal thereof

A dual-frequency antenna, linear polarization technology, applied in the dual-frequency antenna, communication field, to achieve the effect of high stability, small size, and solve the coexistence problem

Active Publication Date: 2018-07-13
深圳星联天通科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of this, the present invention provides a circularly polarized and linearly polarized dual-frequency antenna and its terminal, without changing the circularly polarized volume of the satellite antenna, adding linearly polarized signals, circularly polarized antennas and linearly polarized radiation Multiplexing of oscillators solves the coexistence problem of cluster linear polarization antennas and satellite circular polarization antennas

Method used

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  • Dual-frequency antenna and terminal thereof
  • Dual-frequency antenna and terminal thereof
  • Dual-frequency antenna and terminal thereof

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Embodiment Construction

[0020] Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0021] Please refer to Figure 1 to Figure 3 . The invention provides a circular polarization and linear polarization dual-frequency antenna, which can be left-handed or right-handed circularly polarized antenna. The dual-frequency antenna 100 includes a helical arm radiator, a phase power divider 02, a circular polarization / linear polarization combiner 07, a common mode / differential mode combiner 04, and an RF feeder 03, a differential mode R...

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Abstract

The invention discloses a dual-frequency antenna and a terminal thereof, and belongs to the field of antennas. The dual-frequency antenna comprises a spiral arm irradiator, a phase power divider, a circular-polarization / linear-polarization combiner, a co-module / difference-module combiner, and a RF feeder. The spiral arm irradiator is connected with the phase power divider. The circular-polarization / linear-polarization combiner is parallelly connected with the phase power divider, and connected to the co-module / difference-module combiner through the RF feeder. A linear-polarization signal is transmitted to the circular-polarization / linear-polarization combiner along the RF feeder in a co-module mode, and a circular-polarization signal is transmitted to the phase power divider along the RF feeder in a difference-module mode. The provided dual-frequency antenna and the terminal thereof are used for adding the linear-polarization signal in the case without changing the circular-polarization volume of the satellite antenna, multiplexing the circular-polarization antenna and a linear-polarization radiation oscillator, and solving a coexisting problem of the cluster linear-polarization antenna and the satellite circular-polarization antenna.

Description

technical field [0001] The invention relates to the field of communications, in particular to the field of dual-frequency antennas for satellite communication handheld terminals and trunking communication terminals. Background technique [0002] Satellite telephones have a wide coverage and are not subject to geographical restrictions, and are widely used in navigation, forestry, rescue and other fields. But at the same time, satellite communication has the problems of low capacity and poor coverage penetration (it can only be used in open areas, and cannot be covered indoors). Cluster phone has large capacity, strong penetrating ability, and small coverage area. The combination of satellite phone and cluster phone is exactly complementary. [0003] The satellite communication antenna is circularly polarized and has a higher frequency, while the cluster communication antenna is linearly polarized and has a lower frequency. Due to the limited size of the terminal, two anten...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/36H01Q1/50H01Q23/00H01P5/12H04M1/02
CPCH01P5/12H01Q1/36H01Q1/50H01Q23/00H04M1/026
Inventor 赵小林
Owner 深圳星联天通科技有限公司
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