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Differential feed directional diagram reconfigurable dielectric patch antenna

A technology of differential feeding and patch antenna, which is applied in the fields of antenna grounding device, antenna grounding switch structure connection, climate sustainability, etc., can solve the problem of lack of reconfigurable design of pattern and achieve good radiation performance

Active Publication Date: 2021-08-24
NANTONG UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, so far, only one reconfigurable design based on a dielectric patch resonator works in the dominant mode TM 10 Frequency Reconfigurable Antennas Under , Missing Pattern Reconfigurable Designs

Method used

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  • Differential feed directional diagram reconfigurable dielectric patch antenna
  • Differential feed directional diagram reconfigurable dielectric patch antenna
  • Differential feed directional diagram reconfigurable dielectric patch antenna

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0018] Such as figure 1 As shown, the reconfigurable dielectric patch antenna structure of the differential feeding pattern of the present invention is mainly composed of four parts: dielectric patch 1, upper dielectric substrate 2, metal reflective floor 3 and lower dielectric substrate 4. The dielectric constant of dielectric patch 1 is ε rd =45, the loss tangent is tanδ=1.9×10 -4 , with a volume of w d ×w d × h d . The upper and lower dielectric substrates are RogersRO4003, and its dielectric constant ε rs = 3.38, size L e × L e , with a thickness of h s1 = 60mil and h s2 = 32mil. The metal reflective ground 3 is disposed on the upper layer of the lower dielectric substrate 4 and is etched with three parallel coupling slots (the first coupling slot 8 , the second coupling slot 9 , and the third coupling slot 10 ). The dimensions ...

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Abstract

The invention relates to a differential feed directional diagram reconfigurable dielectric patch antenna, which comprises a lower dielectric substrate, a metal reflection floor, an upper dielectric substrate and a dielectric patch which are sequentially stacked from bottom to top, and is characterized in that the metal reflection floor is provided with three parallel coupling gaps which are positioned right below the dielectric patch; each coupling slot is loaded with a PIN diode, and the lower layer of the lower dielectric substrate is provided with a microstrip feed line orthogonal to the coupling slots, and the microstrip feed line is used for receiving constant-amplitude and reverse-phase radio frequency signals to achieve differential feed. The feed structure of the antenna is controlled by switching the on-off state of the PIN diode, and the electric field distribution of the high-order mode TE12 can be effectively changed. Therefore, under the condition that the size of the antenna is not increased, five different wave beams can be obtained only by using three PIN diodes, and the five PIN diodes have good radiation performance.

Description

technical field [0001] The invention relates to a reconfigurable dielectric patch antenna with a differential feed pattern and belongs to the technical field of wireless communication. Background technique [0002] In order to meet the development needs of large capacity, multi-function and broadband in wireless communication systems, the number of antennas installed on the platform has increased dramatically. This phenomenon is disadvantageous from the viewpoint of reducing the cost and weight of the system or improving electromagnetic compatibility characteristics. The reconfigurable antenna can change the load or physical structure of the antenna in real time according to the needs of the actual environment, so as to realize the functions of multiple antennas on one antenna. According to the function, the reconfigurable antenna is mainly divided into frequency, polarization and pattern reconfigurable. Among them, the pattern reconfigurable antenna has been widely studie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/36H01Q1/38H01Q1/48H01Q1/50
CPCH01Q1/38H01Q1/48H01Q1/36H01Q1/50Y02D30/70
Inventor 陈建新王雪颖唐世昌
Owner NANTONG UNIVERSITY
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