mmWave frequency tunable antenna
A millimeter wave and frequency technology, applied to antennas, devices that make antennas work in different bands at the same time, electrical components, etc., can solve problems such as low signal transmission and reception efficiency, improve transmission and reception efficiency, high radiation efficiency, and avoid energy. effect of loss
Active Publication Date: 2019-09-20
GUANGDONG MIKWAVE COMM TECH
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Problems solved by technology
[0004] Based on this, it is necessary to provide a new millimeter-wave frequency-tunable antenna for the traditional millimeter-wave frequency-tunable antenna, which suffers from severe energy loss and low efficiency of signal transmission and reception.
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[0022] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.
[0023] It should be noted that when an element is referred to as being “disposed on” another element, it may be directly on the other element or there may also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for purposes of ...
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The invention relates to a millimeter wave frequency-adjustable antenna, which comprises a radiation layer, a dielectric substrate layer and a metal grounding layer. The radiation layer comprises a radiation layer body, a feed line, a graphene pad, a stub line and a metal patch. The radiation layer body is internally provided with a waveguide chamber. The graphene pad, the stub line and the metalpatch are arranged in the waveguide chamber; one end of the feed line is connected with the metal patch; the metal patch is connected with the stub line through the graphene pad; the waveguide chamberis provided with an opening; and the feed line passes through the opening. By changing control voltage of the graphene pad, conductivity of the graphene pad is changed; and change of conductivity ofthe graphene pad enables current passing through the stub line to change and enables resonant frequency of the millimeter wave frequency-adjustable antenna to change, thereby realizing adjustment of the resonant frequency of the millimeter wave frequency-adjustable antenna, preventing energy loss and enabling the radiation efficiency of the millimeter wave frequency-adjustable antenna to be higher.
Description
technical field [0001] The present invention relates to the technical field of antennas, in particular to millimeter-wave frequency adjustable antennas. Background technique [0002] With the development of science and technology, the field of consumer electronics is developing in the direction of high performance, miniaturization and flexibility. As an important part of the electronics field, antennas are widely used in fields such as mobile communications, navigation, radar, and radio astronomy. There are many research projects on antennas. [0003] Millimeter wave antennas are the current research focus in the field of antennas. Millimeter waves are extremely important in the fields of future communications, navigation, radar, and radio astronomy. In particular, the need for millimeter wave frequency-adjustable antennas in future communication systems is particularly urgent. In order to realize the frequency adjustment of the millimeter-wave antenna, ferroelectrics, ferr...
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IPC IPC(8): H01Q1/38H01Q5/10H01Q5/321
Inventor 苏道一朱永忠
Owner GUANGDONG MIKWAVE COMM TECH