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Miniature ultra-wideband dual-polarization probe antenna for planar near field measurement

An ultra-wideband, dual-polarization technology, applied in independent antenna unit combinations, antennas, antenna arrays, etc., can solve the problems of high servo system requirements, low efficiency, and high errors, achieving small size, time-consuming and cost-effective solutions low effect

Inactive Publication Date: 2019-04-12
CHINA ELECTRONIS TECH INSTR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems in the prior art that the measurement of the circularly polarized antenna under test and cross-polarization requires probe rotation, long time consumption, low efficiency, high error and high requirements on the servo system, a plane near Miniaturized ultra-wideband dual-polarized probe antenna for field measurements

Method used

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  • Miniature ultra-wideband dual-polarization probe antenna for planar near field measurement
  • Miniature ultra-wideband dual-polarization probe antenna for planar near field measurement
  • Miniature ultra-wideband dual-polarization probe antenna for planar near field measurement

Examples

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Embodiment 1

[0019] Embodiment one, such as figure 1 , 2 As shown, a miniaturized ultra-wideband dual-polarized probe antenna for planar near-field measurement is applied to the low-frequency band in the range of 0.65GHz to 6GHz, and consists of two PCB boards 1 and 2 with complementary slot structures. The front side of the PCB board is the radiation structure of the probe antenna, and is provided with a radiation arm 11, a first patch 14, a second patch 15, a first resistor 12 and a second resistor 13, and the first patch 14 and the second patch The sheet 15 is sequentially arranged above the radiation arm 11 from bottom to top, the two ends of the first resistor 12 are respectively connected across the radiation arm 11 and the first patch 14, and the two ends of the second resistor 13 are respectively connected across the first patch 14 And on the second patch 15, the reverse side of the PCB board is provided with a feed structure, the two PCB boards are respectively provided with comp...

Embodiment 2

[0021] Embodiment two, such as image 3 , 4 As shown, a miniaturized ultra-wideband dual-polarization probe antenna for planar near-field measurement is used in the high-frequency range from 6GHz to 18GHz. It adopts a double-exponential gradient vivaldi antenna structure and consists of two PCB boards 3 and 4. ,

[0022] The two PCB boards adopt a defect structure, the front side is the radiation structure of the probe antenna, and a radiation arm 31 is provided, and the back side of the PCB board is provided with a feed structure, and complementary slots adapted to each other are provided on the PCB boards respectively. 36, 46, two PCB boards are plugged together through complementary grooves 36, 46 pairs.

[0023] image 3 , 4 Among them, the miniaturized ultra-broadband dual-polarization probe antenna for planar near-field measurement adopts a double-exponential gradient vivaldi antenna structure and is also composed of two PCB boards 3 and 4 with complementary slot str...

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Abstract

The invention discloses a miniature ultra-wideband dual-polarization probe antenna for planar near field measurement. The miniature ultra-wideband dual-polarization probe antenna is applied to a low-band probe antenna within a range of 0.65-6GHz and comprises two complementary groove-structure PCBs, wherein a front surface of each PCB is a radiation structure of the probe antenna, a radiation arm,a first patch, a second patch, a first resistor and a second resistor are arranged, and the first patch and the second patch are sequentially arranged on above the radiation arm from bottom to top. The miniature ultra-wideband dual-polarization probe antenna is applied to a high-band probe antenna within a range of 6-18GHz, employs a double-exponential gradually-changing vivaldi antenna structureform and comprises two PCBs. The miniature ultra-wideband dual-polarization probe antenna has the beneficial effects that the probe antenna is of a microstrip structure, has the advantages of small size, light weight, low cost and the like and is easy to process; and a plurality of probe antennas form a one-dimensional antenna array, switching among probe antenna units is achieved by a switch matrix, rapid sampling is completed, and the problems of long consumed time, low efficiency, high error and the like of traditional planar near field measurement are solved.

Description

technical field [0001] The invention belongs to the technical field of antenna measurement equipment, and in particular relates to a miniaturized ultra-wideband dual-polarization probe antenna for planar near-field measurement. Background technique [0002] The planar near-field measurement technology is one of the important components of the antenna measurement system. Through the mechanical scanning of the antenna probe, the planar near-field amplitude and phase data of the antenna under test (AUT) can be obtained, so as to realize the antenna pattern, gain and polarization, etc. Measurement of Radiation Parameters. [0003] Planar near-field measurement generally uses a rectangular waveguide radiator or a horn antenna as the antenna probe, and performs discrete sampling at a certain interval in the plane near the antenna to be tested, so as to obtain the amplitude and phase information of the near-field area radiated by the antenna to be tested. The radiation parameters ...

Claims

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Application Information

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IPC IPC(8): H01Q1/38H01Q1/50H01Q21/00H01Q21/30G01R29/10
CPCG01R29/10H01Q1/38H01Q1/50H01Q21/0006H01Q21/0075H01Q21/30
Inventor 刘跃赵广峰许晓龙
Owner CHINA ELECTRONIS TECH INSTR CO LTD