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Miniaturized ceramic-based wideband planar spiral antenna

A flat helical and helical antenna technology is applied in the fields of measurement and control communication, satellite navigation, and microwave antennas.

Pending Publication Date: 2019-02-22
常熟正昊电子科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a miniaturized ceramic-based broadband planar helical antenna, which solves the problem that the prior art cannot satisfy the miniaturization, radiation broadband and compact installation of the planar helical antenna

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  • Miniaturized ceramic-based wideband planar spiral antenna
  • Miniaturized ceramic-based wideband planar spiral antenna
  • Miniaturized ceramic-based wideband planar spiral antenna

Examples

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Embodiment 1

[0030] The design frequencies of the miniaturized ceramic-based broadband planar helical antenna in this embodiment are L band (center frequency 1.45 GHz), C band (center frequency 4.35 GHz), and Ku band (center frequency 13 GHz).

[0031] The miniaturized ceramic-based broadband planar helical antenna of this embodiment, see figure 1 with figure 2 , Including a single-sided copper-clad microwave ceramic substrate 2, two radiating helical antenna arms 1 are provided on the copper-clad layer of the microwave ceramic substrate 2, and a connecting arm 21 is provided in the center of the copper-clad layer of the microwave ceramic substrate 2 , The two ends of the connecting arm 21 are respectively connected to the inner end points of the two radiating spiral antenna arms 1 (see image 3 ), a first PMI foam support layer 31 is provided under the microwave ceramic substrate 2, and a first periodic frequency selection structure 41 is provided under the first PMI foam support layer 31 (s...

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Abstract

The invention belongs to the technical field of microwave antennas, satellite navigation, and measurement and control communication, in particular relates to a miniaturized ceramic-based wideband planar spiral antenna, which comprises a single-sided copper-clad microwave ceramic substrate and two antenna bottom plates. The copper-clad layer of the microwave ceramic substrate is provided with two radiation spiral antenna arms. A plurality of periodic frequency selection structures are disposed between the microwave ceramic substrate and the antenna bottom plates. An antenna Balun structure is arranged between the two antenna bottom plates. PMI foam support layers are disposed between the microwave ceramic substrate and the periodic frequency selection structures, between every two adjacentperiodic frequency selection structures, between the periodic frequency selection structures and the antenna bottom plates. The miniaturized ceramic-based wideband planar spiral antenna satisfies thetechnical index requirements of respective designed frequency points by continuously changing the width of the spiral arm of the antenna, the number of spiral turns, the thickness of each structure, the circuit size parameter of the periodic structure, and the size of a feed circuit.

Description

Technical field [0001] The invention belongs to the technical fields of microwave antennas, satellite navigation, and measurement and control communication, and is specifically a miniaturized ceramic-based broadband planar helical antenna. Background technique [0002] Currently, microwave communication technology is changing with each passing day. Industries such as communication measurement and control, satellite navigation, and electronic countermeasures are developing rapidly. Many industries have increasingly higher requirements for antennas with broadband, high gain, and miniaturization. Planar helical antennas have complementary shapes, and therefore have broadband characteristics, and are widely used in many fields such as satellite navigation, communication measurement and control, and electronic countermeasures. In 1957, V.H Rumsey derived the concept of frequency independent antennas (Frequency Independent Antenna, FIA) based on similar principles, and designed a cla...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q5/28H01Q5/314H01Q5/50H01Q1/50H01Q1/36
CPCH01Q1/36H01Q1/50H01Q5/28H01Q5/314H01Q5/50
Inventor 谢宗蕻张朋郝亚会
Owner 常熟正昊电子科技有限公司
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