A Compact Ultra-Wideband Antenna Based on L-shaped Parasitic Strips
An ultra-wideband antenna and parasitic strip technology, applied to antennas, devices that enable antennas to work in different bands at the same time, electrical components, etc., can solve the problems of complex slot structure or radiation patch structure and increased bandwidth, and achieve a solution Impedance mismatch problem, expanded bandwidth, and compact structure
Active Publication Date: 2016-08-24
四川省长江华云电子技术有限公司
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Problems solved by technology
Looking at these methods, if you want to obtain a sufficiently large bandwidth, the slot structure or the radiation patch structure will be more complicated, and it is difficult to achieve a significant increase in bandwidth on the basis of miniaturization.
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[0027] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
[0028] figure 1 It is a three-dimensional view of the overall structure of the compact ultra-wideband antenna based on the L-shaped parasitic strip of the present invention, as shown in the figure:
[0029] The compact ultra-wideband antenna based on L-shaped parasitic strips of the present invention includes a dielectric substrate, a ground plate, a metal radiation patch, a microstrip feeder, a coaxial cable, and an L-shaped metal parasitic structure.
[0030] Among them, the bottom of the dielectric substrate is close to the metal grounding plate, the width of the grounding plate is the same as that of the dielectric substrate, and its length is less than half of the dielectric substrate. A rectangular groove is dug in the center of the upper edge of the dielectric substrate, and the rectangular groove has good coupling with the feeder. ...
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The invention discloses a compact ultra-wideband antenna based on L-shaped parasitic strips, and belongs to the technical field of ultra-wideband antennas. The ultra-broadband antenna includes a radiation patch, a dielectric substrate, a ground plate, a parasitic strip part, a microstrip feeder and a coaxial cable; the upper surface of the dielectric substrate is closely attached to a regular hexagonal metal radiation patch; the microstrip feeder is tightly Attached to the upper surface of the dielectric substrate, one end is connected to the radiation patch, and the other end is connected to the inner conductor of the coaxial cable; the coaxial cable also includes a dielectric layer and an outer conductor, and the outer conductor is in contact with the grounding plate; the parasitic The strips are located on both sides of the microstrip feeder and are two L-shaped strips with different sizes; a rectangular slot is opened on the top of the grounding plate. The compact ultra-wideband antenna based on the L-shaped parasitic strip has simple structure, small size, and good and stable ultra-wideband radiation characteristics.
Description
technical field [0001] The invention belongs to the technical field of ultra-wideband antennas, and relates to a compact ultra-wideband antenna based on L-shaped parasitic strips. Background technique [0002] Ultra-wideband (UWB) technology has the advantages of high transmission rate, reasonable image analysis and high security, and has broad application prospects in many fields such as wireless communication, microwave imaging and electronic countermeasures. UWB antenna is one of the key components of UWB communication system, and its characteristics directly affect the performance of the whole system. With the approval of the U.S. Federal Communications Commission (FCC) to use 3.1-10.6GHz as a short-distance wireless communication frequency band, UWB antenna technology has attracted more and more attention. People’s design of UWB antennas is not limited to UWB frequency bands, but Therefore, higher and higher requirements are put forward for UWB antennas, especially in ...
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IPC IPC(8): H01Q1/38H01Q5/10H01Q13/08
Inventor 唐明春赵昺玥向万芝熊汉曾浩肖绍球
Owner 四川省长江华云电子技术有限公司