Slot printing monopole ultra-wideband antenna

Abstract

The invention discloses a slot printing monopole ultra-wideband antenna, and relates to an ultra-wideband antenna. The invention provides the slot printing monopole ultra-wideband antenna with small size, large bandwidth, lower return loss, simple structure and omnidirectional radiation property. The slot printing monopole ultra-wideband antenna is provided with a dielectric substrate, a rectangular and trapezoidal structural array body is printed on the dielectric substrate, the lower bottom of the trapezoid is placed on the rectangle in the middle, the array body is provided with a slot, the array body is reversely placed at the top end of the dielectric substrate, the lower edge of the array body is connected with a microstrip line, the microstrip line is connected with a radiating element, and the microstrip line extends to the edge of the dielectric substrate; and the lower end of the back of the dielectric substrate is provided with a grounding plane, and a clearance is formed between the grounding plane and the array body on the facade of the dielectric substrate.

Description

technical field [0001] The invention relates to an ultra-wideband antenna, in particular to a monopole ultra-wideband antenna with slots on a rectangular and trapezoidal element body. Background technique [0002] With the development of wireless communication technology, people have higher and higher requirements for high-speed and short-distance wireless communication. The emergence of ultra-wideband (UWB) technology has realized ultra-wideband and high-speed data transmission within a short distance. The characteristics of its modulation method and multiple access technology make it have a very wide bandwidth and high-speed data that other wireless communication technologies cannot Transmission, low power consumption, high security performance and other characteristics. Unlike traditional communication technologies, UWB is a technology that uses nanosecond-level narrow pulses to transmit wireless signals. Therefore, compared with other wireless technologies, UWB has a la...

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Problems solved by technology

The literature ([11]Sandler S S and King R W P.Compact conical antennas for wide-band coverage[J].IEEE Transactions on Antennas and Propagation, 1994,42(3):436-439) obtained the slotted finger through optimization The monopole antenna is printed in the shape of a monopole, but the size is large, and its height reaches 45mm. The literature ([12]Agrawall Narayan Prasad, Kumar Girish, and Ray K P.Wide-Band Planar Monopole Antennas[J].IEEE Transactions on Antennas and Propagation , 1998, 46(2): 294-295) obtained an interdigitated antenna with an area of ​​32mm×28.1mm by offsetting the feed point, literature ([13]Wong Kin-Lu, Wu Chih-Hsien, and Su Saou- Wen(Stephen).Ultrawide-band square planar metal-plate monopole antenna with a trident-shaped feeding Strip[J].IEEE Transactions on Antennas and Propagation, 2005,53(4):1262-1269) using U-shaped slotted radiation element, through the arc-shaped multi-segment ground plane, the size reduction and bandwidth increase are realized, but this structure introduces the complexity of antenna fabrication

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