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Microfluid frequency reconfigurable quasi-yagi antenna based on dielectric resonator

A dielectric resonator and microfluidic technology, applied in resonant antennas, non-resonant long antennas, antennas, etc., can solve problems such as non-adjustable

Active Publication Date: 2020-10-16
NANTONG UNIVERSITY
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  • Abstract
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  • Application Information

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Problems solved by technology

It not only has a higher gain than the traditional quasi-Yagi electric dipole antenna, but also has a high efficiency of more than 90% in the X-band, but the antenna uses a fixed operating frequency and cannot be adjusted

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  • Microfluid frequency reconfigurable quasi-yagi antenna based on dielectric resonator
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  • Microfluid frequency reconfigurable quasi-yagi antenna based on dielectric resonator

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with the drawings and specific embodiments.

[0019] In order to have a clearer understanding of the technical features, objectives and effects of the present invention, the specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0020] See figure 1 , figure 2 It is a schematic diagram of a microfluidic frequency reconfigurable quasi-Yagi antenna based on a dielectric resonator in an embodiment of the present invention. The antenna of the embodiment of the present invention includes: a dielectric substrate 1, a reflector 2, a driving unit 6 and a differential feeding network that directly feeds the driving unit 6. The driving unit 6 is placed on the top layer of the dielectric substrate 1 and performs differential feeding through a differential feeding network. In order to realize the coplanar strip line feeding, a pair of equal amplitu...

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Abstract

The invention relates to a microfluid frequency reconfigurable quasi-yagi antenna based on a dielectric resonator. The antenna comprises a dielectric substrate, a reflector, a driving unit, a differential feed network, and insulating tubes which are symmetrically arranged based on the center line of the antenna and vertically penetrate through the driving unit and the dielectric substrate, the working frequency of the antenna is adjusted by injecting liquid into the insulating tubes, the liquid injection states of the symmetrical insulating tubes are consistent, and the liquid injection statesinclude a full liquid injection state and a non-liquid injection state. The invention provides a frequency reconfigurable quasi-yagi antenna adopting a dielectric resonator working in a high-order TE3[delta]1 mode for the first time. According to the electric field distribution of a TE3[delta]1 mode, a place with a relatively strong electric field is selected as a position of four air holes penetrating through the dielectric resonator to load the insulating tubes so as to obtain a relatively large frequency tuning range. The working frequency of the antenna can be effectively adjusted by injecting purified water into the symmetrical insulating tubes in sequence.

Description

Technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a microfluidic frequency reconfigurable quasi-Yagi antenna based on a dielectric resonator. Background technique [0002] As a key device for signal transmission and reception, frequency reconfigurable antennas play an important role in high-performance multi-RF communication platforms, and they have received extensive attention from researchers. So far, various frequency tuning methods have been developed, including electrical tuning and mechanical tuning. The former is mainly realized by semiconductor diodes or electric switches. This tuning mechanism is highly robust in terms of operation and technological maturity. However, they also bring many disadvantages, such as low radiation efficiency (due to the loss of diode parasitic resistance) and low power capacity (due to the electrical breakdown of diodes and switches). In order to solve this problem, in rec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q11/02H01Q9/04H01Q1/36H01Q1/38H01Q1/50H01Q13/20
CPCH01Q11/02H01Q9/0485H01Q1/36H01Q1/38H01Q1/50H01Q13/206
Inventor 陈建新黄叶鑫朱文婷唐世昌王雪颖杨玲玲
Owner NANTONG UNIVERSITY
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