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Handheld dual-mode miniaturized user machine antenna

A user machine and circularly polarized antenna technology, applied in antennas, independent non-interactive antenna combinations, electrical short antennas, etc., can solve the problems of large volume, lack of military code communication L and S frequency bands for handheld user machine antennas, etc. Achieve the effect of reducing the volume, ensuring the working performance and reducing the tangent value of the angle

Inactive Publication Date: 2014-07-30
SHAANXI HAITONG ANTENNA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Patent No.: ZL201220131424.8 "A Multi-mode Navigation Miniaturized Antenna for Beidou Navigation and Positioning System", although the B1 frequency band of the second generation of Beidou and the L1 frequency band of the GPS system are compatible in one module, but the handheld user machine The antenna lacks the B3 frequency band of military code communication and the L and S frequency bands of Beidou generation, and because of its large size, it cannot meet the needs of users

Method used

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  • Handheld dual-mode miniaturized user machine antenna
  • Handheld dual-mode miniaturized user machine antenna
  • Handheld dual-mode miniaturized user machine antenna

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Example 1: Design the normal gain of the center frequency point of the B3 frequency band to be 1.8dBic, the normal gain of the center frequency point of the L frequency band and the S frequency band to be 2.8dBic and 3.5dBic respectively, and the volume is 35mm×35mm×15mm handheld dual-mode miniaturized user machine antenna.

[0038] refer to figure 1 , the antenna in this example includes: base plate 1, feed network 2, feed probe 6, Beidou 2nd generation B3 frequency band circular polarization antenna 3, Beidou 1st generation L frequency band circular polarization antenna 4 and Beidou 1st generation S frequency band circular pole Antenna 5. Wherein: the structures of the three circularly polarized antennas are respectively as follows figure 2 , image 3 , Figure 4 shown.

[0039] Refer to as figure 2 , the Beidou first-generation S-band circularly polarized antenna 5 adopts a ceramic microstrip patch structure, which adopts a ceramic material with a thickness of ...

Embodiment 2

[0052] Embodiment 2: Design the normal gain of the center frequency point of the B3 frequency band to be 2.0dBic, the normal gain of the center frequency point of the L frequency band and the S frequency band to be 3dBic and 3.8dBic respectively, and the volume is 35mm×35mm×17mm handheld dual-mode miniaturized user machine antenna .

[0053] The overall components and structural relationship of this example are the same as in Embodiment 1, and the structural parameters of its three circularly polarized antennas are changed as follows:

[0054] The Beidou first-generation S-band circularly polarized antenna 5 adopts a ceramic microstrip patch structure, and its substrate 51 is made of a ceramic material with a thickness of 2.5 mm and a dielectric constant of 20. The ceramic substrate is printed with S-band microstrips. With a radiation patch 56, the radiation patch adopts a deformed square ring with radial strip lines 55 on four sides, and the side length S1 of the deformed squ...

Embodiment 3

[0057] Embodiment 3: The normal gain of the center frequency point of the B3 frequency band is designed to be 2.5dBic, the normal gain of the center frequency point of the L frequency band and the S frequency band is 3.3dBic and 4dBic respectively, and the volume is 35mm×35mm×19mm handheld dual-mode miniaturized user machine antenna .

[0058] The overall components and structural relationship of this example are the same as those of Example 1. The structural parameters of the three circularly polarized antennas are changed as follows:

[0059] The Beidou first-generation S-band circularly polarized antenna 5 adopts a ceramic microstrip patch structure, and its substrate 51 adopts a ceramic material with a thickness of 3mm and a dielectric constant of 21, and the microstrip of the S-band is printed on the ceramic substrate. Radiation patch 56, the radiation patch adopts a deformed square ring with radial strip lines 55 on four sides, and the side length S1 of the deformed squ...

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Abstract

The invention provides a handheld dual-mode miniaturized user machine antenna. The antenna comprises a bottom plate (1), feed networks (2), a B3 frequency band circularly polarized antenna body (3), an L frequency band circularly polarized antenna body (4), an S frequency band circularly polarized antenna body (5) and feed probes (6). Ceramic substrates with different thicknesses and dielectric constants are adopted for the circularly polarized antenna bodies, a deformed square patch with a radial band line is printed on each substrate, and a coaxial superposition laminated structure is formed by the three circularly polarized antenna bodies from top to bottom according to the working frequency from high to low. The three frequency band antenna bodies are connected with respective feed networks through the feed probes, and the bottom plate and a feed network plate are fixed; three radio-frequency connectors are arranged below the feed network plate, connected with feed network radio-frequency outlets of the three frequency band circularly polarized antenna bodies respectively and led out through three holes below the bottom plate. The handheld dual-mode miniaturized user machine antenna can be compatible with the L frequency band and the S frequency band of the first Big Dipper generation and the B3 frequency band of the second Big Dipper generation, is smaller in size compared with an existing handheld antenna and can be used for military handheld navigation equipment.

Description

technical field [0001] The invention relates to the technical field of antennas, specifically a dual-mode small antenna, which can be used for compatibility with the L frequency band and S frequency band of the Beidou first-generation navigation satellite system and the B3 frequency band of the Beidou second-generation navigation satellite system, and can also be used for external use of hand-held user machines. antenna. Background technique [0002] At present, satellite navigation systems with global navigation and positioning functions include GPS in the United States and GLONASS in Russia. my country's "Beidou-1" navigation satellite system was officially launched in 2003. This is a dual-star positioning system for local areas. It is mainly used for military and civilian needs in my country and surrounding areas. The system has been operating well for many years and has developed a large number of Military and civilian users. Currently, the "Beidou-2" second-generation ...

Claims

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Application Information

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IPC IPC(8): H01Q13/08H01Q1/36H01Q1/38H01Q1/48H01Q21/28
CPCH01Q9/0414
Inventor 晏阳栋唐惠武顾庆峰覃慧宁惠珍杨雄飞
Owner SHAANXI HAITONG ANTENNA
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