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Frequency-reconfigurable ultra broad band antenna based on planar bi-layer section electromagnetic slit structure

An ultra-wideband antenna and sector-shaped technology, applied in the field of frequency reconfigurable ultra-wideband antenna, can solve the problems of large size, complex antenna design, and large difference in far-field radiation characteristics, so as to reduce the physical size and expand the scope of application Effect

Active Publication Date: 2013-11-06
重庆信科设计有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0011] However, some of these antennas are complex in design, and the radiation characteristics are not easy to control (such as methods 1, 2, and 3); The far-field radiation characteristics of different resonance points are quite different (such as methods 1, 3, and 5), which cannot well meet the communication requirements

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  • Frequency-reconfigurable ultra broad band antenna based on planar bi-layer section electromagnetic slit structure
  • Frequency-reconfigurable ultra broad band antenna based on planar bi-layer section electromagnetic slit structure
  • Frequency-reconfigurable ultra broad band antenna based on planar bi-layer section electromagnetic slit structure

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Embodiment Construction

[0033] All features disclosed in this specification, or steps in all methods or processes disclosed, may be combined in any manner, except for mutually exclusive features and / or steps.

[0034] Any feature disclosed in this specification (including any appended claims, abstract and drawings), unless expressly stated otherwise, may be replaced by alternative features which are equivalent or serve a similar purpose. That is, unless expressly stated otherwise, each feature is one example only of a series of equivalent or similar features.

[0035] In the present invention, the ultra-broadband antenna includes a metal plate, a fan-shaped radiation plate, a conductive via, a coaxial connector, a mesh metal plate and a microstrip line that are located on the same plane and connected, wherein the fan-shaped radiation plate is arranged on the metal plate The outer core of the coaxial connector is connected to the metal plate and the inner core is connected to the microstrip line, and ...

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Abstract

The invention discloses a frequency-reconfigurable ultra broad band antenna based on a planar bi-layer section electromagnetic slit structure, belonging to the field of ultra broad band antennas. The frequency-reconfigurable ultra broad band antenna comprises a metal plate, a sector radiation plate, a conducting through hole, a coaxial connector, a reticular metal plate and a micro-strip line, wherein the reticular metal plate and the micro-strip line are arranged on a same plane and are connected, the sector radiation plate is arranged on the metal plate and is connected with the reticular metal plate through the conducting through hole, an outer core of the coaxial connector is connected with the metal plate, an inner core of the coaxial connector is connected with the micro-strip line, the sector radiation plate consists of a plurality of arc radiation fins on the same plate, a gap is arranged between the arc radiation fins, and a conducting switch is arranged in each gap. According to the frequency-reconfigurable ultra broad band antenna based on the planar bi-layer section electromagnetic slit structure, disclosed by the invention, the resonance frequency and a band width range can be controlled, and the radiation characteristics basically are kept changeless in the band width range.

Description

technical field [0001] The invention relates to an ultra-wideband antenna, in particular to a frequency reconfigurable ultra-wideband antenna based on a planar double-layer fan-shaped electromagnetic slot structure. Background technique [0002] Ultra Wideband (UWB) technology is a new type of wireless communication technology. It solves the major problems related to propagation that have plagued traditional wireless technology for many years. It has the advantages of insensitivity to channel fading, low power spectral density of transmitted signals, low interception capability, low system complexity, and positioning accuracy of several centimeters. In recent years, with the rapid development of communication technology, antennas have been widely used in electronic countermeasure systems, ultra-wideband radar, satellite communication and other fields, and there are also extensive demands in high-speed wireless LAN, home network and wireless telephone. Therefore, it is of gr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/36H01Q3/01H01Q23/00
Inventor 李校林田海燕文武楼思研
Owner 重庆信科设计有限公司
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