A Novel Dual-Port Feed Four-Band Filtered Duplex Antenna
A dual-port, quad-band technology, applied in the field of new dual-port fed quad-band filter duplex antennas, can solve the problems of multiple transmission losses, large size, reduced efficiency, etc., to improve port isolation, compact structure, and reduce complexity. degree of effect
Active Publication Date: 2022-03-29
西安电子科技大学昆山创新研究院
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[0002] In a wireless communication system, antennas, filters and duplexers are essential, but in the design of traditional wireless communication systems, antennas, filters and duplexers are integrated and connected by a 50-ohm transmission line. The design of the above antenna , on the one hand, it causes the size of the whole system to be large, on the other hand, it also reduces the efficiency and causes more transmission loss
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[0035] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0036] In the description of the present utility model, it should be noted that the orientations or positional relationships indicated by the terms "upper", "lower", "horizontal", "left", "right", "front", "rear" are all Based on the orientation or positional relationship shown in the drawings, it is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot It should be understood as a limitation of the present utility...
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The invention discloses a novel dual-port feeding four-band filter duplex antenna, which includes: a radiation layer, the radiation layer is a metal patch with a U-shaped groove; a first dielectric substrate, the upper surface of the first dielectric substrate The surface is a radiation layer; a metal floor, the metal floor is provided with gaps; a second dielectric substrate, the upper surface of the second dielectric substrate is a metal floor, and the lower surface of the second dielectric substrate is a filter feed network; the An air gap is provided between the first dielectric substrate and the second dielectric substrate. The technical solution provided by the invention effectively reduces the matching circuit between the three elements in the traditional design; reduces the complexity of the antenna system, enables the size of the antenna system to be further reduced, and the structure becomes more compact; at the same time, it also greatly reduces the transmission loss between filters, duplexers and antennas.
Description
technical field [0001] The invention belongs to the technical field of wireless communication, and in particular relates to a novel double-port feeding four-band filtering duplex antenna. Background technique [0002] In a wireless communication system, antennas, filters and duplexers are essential, but in the design of traditional wireless communication systems, antennas, filters and duplexers are integrated and connected by a 50-ohm transmission line. The design of the above antenna , On the one hand, it causes the size of the whole system to be large, on the other hand, it also reduces the efficiency and causes more transmission loss. Contents of the invention [0003] The purpose of the present invention is to provide a novel dual-port feeding four-band filtering duplex antenna, which has simple structure, high efficiency, low cost and wide bandwidth, and is very suitable for satellite positioning systems. [0004] For realizing above-mentioned purpose of the inventio...
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IPC IPC(8): H01Q1/36H01Q1/38H01Q1/48H01Q5/50
CPCH01Q1/36H01Q1/38H01Q1/48H01Q5/50
Inventor 邓敬亚谭重浩孙冬全郭立新雒艳
Owner 西安电子科技大学昆山创新研究院