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Substrate integrated coaxial line (SICL) resonant cavity gap-based asymmetric circularly-polarized antenna device

A dual-polarized antenna and slot antenna technology, applied in slot antennas, antennas, antenna coupling and other directions, can solve the problem of inability to use coplanar form, and achieve the effects of simple structure, easy adjustment, and flexible feeding mode.

Inactive Publication Date: 2018-07-06
HARBIN INST OF TECH AT WEIHAI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the transition from micro to SICL cannot adopt the coplanar form, only the different form

Method used

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  • Substrate integrated coaxial line (SICL) resonant cavity gap-based asymmetric circularly-polarized antenna device
  • Substrate integrated coaxial line (SICL) resonant cavity gap-based asymmetric circularly-polarized antenna device
  • Substrate integrated coaxial line (SICL) resonant cavity gap-based asymmetric circularly-polarized antenna device

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Embodiment

[0034] The present invention designs a specific asymmetrical dual-polarized antenna system device based on the gap of the medium-integrated coaxial resonant cavity, uses full-wave electromagnetic simulation software to simulate the performance of the antenna array, and the simulation experiment results verify the invention. Feasibility and effectiveness of the proposed asymmetric dual-polarized antenna device based on the gap of the dielectric-integrated coaxial resonant cavity.

[0035] The simulation results of the voltage standing wave ratio (VSWR) of port 1 and port 2 of the dual-polarized antenna designed by the present invention are respectively as follows Figure 6 and Figure 7 shown. The isolation between port 1 and port 2 is as Figure 8 shown. Within the working bandwidth, the voltage standing wave ratio of port 1 and port 2 is about 2, and the port isolation is greater than 20dB.

[0036] At the center at the frequency, the simulation results of the radiation p...

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Abstract

The invention relates to the technical field of a circularly-polarized antenna sensor device, in particular to a substrate integrated coaxial line (SICL) resonant cavity gap-based asymmetric circularly-polarized antenna device. The SICL resonant cavity gap-based asymmetric circularly-polarized antenna device is characterized by being formed by combining a dielectric integrated coaxial line resonator cavity slot antenna and a broadband E-shaped microstrip patch antenna, a lamination structure is arranged between the dielectric integrated coaxial line resonator cavity slot antenna and the broadband E-shaped microstrip patch antenna and is implemented by a printed circuit technology, the dielectric integrated coaxial line resonator cavity slot antenna forms a polarization port, the broadbandE-shaped microstrip patch antenna is used as a polarization port orthogonal to the polarization port, the two polarization ports are asymmetric, the two polarization ports form an orthogonal radiationfield in space, and a dual-polarization working mode can be generated. The dual-polarization antenna structure is simple, is relatively low in cost, is suitable for occasions of dual-polarization radar, a communication system and the like, has platform applicability and is widely applied to the field.

Description

Technical field: [0001] The invention relates to the technical field of dual-polarized antenna sensor devices, in particular to an asymmetrical dual-polarized antenna device based on a slot in a SICL resonant cavity. Background technique: [0002] As the essential attribute of electromagnetic waves, polarization is an important basic parameter other than amplitude, frequency, and phase, which describes the vector characteristics of electromagnetic waves, that is, the trajectory characteristics of the electric field vector end changing with time on the propagation section. The development and utilization of radar polarization information has involved the whole process related to radar detection, such as electromagnetic wave radiation, propagation, scattering, reception and processing. [0003] Dual-polarized antennas are an effective way to implement polarization-sensitive arrays. Traditional dual-polarized antennas are based on orthogonally placed electric or magnetic radia...

Claims

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Application Information

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IPC IPC(8): H01Q1/38H01Q1/52H01Q13/18H01Q15/24H01Q21/00
CPCH01Q15/24H01Q1/38H01Q1/52H01Q13/18H01Q21/00
Inventor 宋立众何露茜张敏刘志勇王静周洪娟
Owner HARBIN INST OF TECH AT WEIHAI
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