Novel tri-wave trapping UWB (Ultra Wide Band) antenna

An ultra-wideband antenna and three-notch technology, applied in the field of antennas, achieves good omnidirectional radiation characteristics, facilitates integration, and simplifies design

Inactive Publication Date: 2015-06-03
HARBIN HESON SCI & TECH
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  • Abstract
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Problems solved by technology

The most commonly used is the slotting technology, such as the patent number CN202373694U, the Chinese patent titled "Ultra-Wideband Antenna with Double Notch Characteristics", which opens two slots on the radiation patch to achieve double notch However, although the stop band of the WLAN frequency band achieves the effect of notch, a considerable part of the frequency band that should not be trapped is also filtered out.

Method used

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  • Novel tri-wave trapping UWB (Ultra Wide Band) antenna
  • Novel tri-wave trapping UWB (Ultra Wide Band) antenna

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Embodiment Construction

[0030] The present invention is described in detail below in conjunction with accompanying drawing example:

[0031] The present invention as figure 1 , figure 2 Three U-like grooves 2 , 3 , 4 are etched from the rectangular radiation unit 4 , the coplanar waveguide feeder 6 , the ground plane 7 , and the rectangular radiation unit 4 . The entire antenna is printed on the same side of the dielectric substrate 1 with a dielectric constant of 3.55. The lower end of the feeder 6 of the ultra-broadband antenna is connected to the inner conductor of the SMA. The outer conductor of the SMA is connected to the ground plane 7 . according to figure 1 , figure 2 In the structure shown, slot 1 is 9 mm away from the top of the ground plane, slot 2 is 6.4 mm away from the top of the ground plane, and slot 3 is 3 mm away from the top of the ground plane. Selecting an appropriate size during design can satisfy its ultra-wideband and notch characteristics.

[0032] The present invent...

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Abstract

The invention discloses a novel UWB (Ultra Wide Band) antenna with a tri-wave trapping characteristic. The novel UWB antenna is characterized by comprising a dielectric substrate , wherein metallic conductor surfaces are printed on the same side of the dielectric substrate; a rectangular radiating element structure, a coplanar waveguide feeder line and incomplete ground planes are positioned in the dielectric substrate; three similar U-shaped grooves are etched in the rectangular radiating element, so that such a structure can generate trapped waves of three frequency bands; the left and right sides of the feeder line are provided with the partial ground planes; a micro coplanar waveguide feeding mode is adopted for feeding.

Description

technical field [0001] The invention relates to the technical field of antennas, in particular to a novel triple-notch ultra-wideband antenna. Background technique [0002] Since January 14, 2002, the U.S. Federal Communications Commission classified the 3.1-10.6GHz frequency as a civilian license-free ultra-wideband (UWB) frequency band, UWB short-distance communication technology has become a fierce competition in the field of wireless communication. The focus, as an important part of the UWB antenna, has also become a hot topic for scientific and technological personnel to study in recent years. The UWB frequency band is defined as a range where the relative bandwidth is >20% or the absolute bandwidth is greater than 500MHz. However, some narrowband communication systems already exist in the frequency band specified by the UWB system, such as WIMAX (3.3GHz-3.7Ghz) communication system, wireless local area network WLAN (5.15GHz-5.825GHz) and some C-band satellite commu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q1/50
Inventor 吴永飞张道亮金佳佳
Owner HARBIN HESON SCI & TECH
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