Filtering antenna array based on multi-mode resonator

A filter antenna and dual-mode resonator technology, applied in the field of mobile communication, can solve the problems of edge frequency selectivity deterioration, unfavorable communication, large volume, etc., and achieve the effect of compact structure, improved frequency selectivity, and expanded bandwidth

Active Publication Date: 2017-11-21
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The disadvantage is that all three need a separate matching network to match the 50 ohm feeder, which brings about the problem of large volume and total weight. At the same time, too many matching networks bring about the disadvantage of large loss
Such a design will lead to deterioration of edge frequency selectivity, which is not conducive to communication

Method used

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  • Filtering antenna array based on multi-mode resonator
  • Filtering antenna array based on multi-mode resonator
  • Filtering antenna array based on multi-mode resonator

Examples

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Embodiment

[0041] refer to figure 1 with figure 2 , the present embodiment discloses a filter antenna array based on multimode resonators, the upper surface of the upper dielectric substrate 9 is printed with four identical first microstrip patch antennas 1 placed symmetrically, and the upper surface of the lower dielectric substrate 10 It is printed with four identical second microstrip patch antennas 2 placed symmetrically and a power distribution network 3 with a filter function divided into four, and a reflective floor 11 is printed on its lower surface.

[0042] Wherein said first microstrip patch antenna 1 is a parasitic patch, and the second microstrip patch antenna 2 is a driving patch, and said first microstrip patch antenna 1 includes a first parasitic patch 12, a second microstrip patch antenna Two parasitic patches 13, the third parasitic patch 14 and the fourth parasitic patch 15, the second microstrip patch antenna 2 includes a first driving patch 16, a second driving pat...

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Abstract

The invention discloses a filtering antenna array based on a multi-mode resonator. The filtering antenna array comprises four same dual-layer stacked microstrip patch antennas arranged symmetrically and a power distribution network with a one-to-four distributor, wherein each dual-layer stacked microstrip patch antenna comprises a first microstrip patch antenna and a second microstrip patch antenna, the power distribution network with the one-to-four distributor comprises an impedance conversion microstrip, a reverse-phase power distribution microstrip, a tapping coupling microstrip, a branch loaded dual-mode resonator and an in-phase power distribution T-type microstrip. The invention designs the filtering power distribution network with filtering and power distribution functions, the dual-layer stacked microstrip patch antenna is used as the last order of a filter network, the filter order is improved, and meanwhile edge selectivity is enhanced. Meanwhile, the antenna is relatively compact in structure, high in gain and good in filter property.

Description

technical field [0001] The invention relates to the technical field of mobile communication, in particular to a filter antenna array based on a multimode resonator. Background technique [0002] The antenna feeder system is the front end of the wireless communication system and an indispensable key component of the wireless communication system. The antenna feed system includes antenna, filter and duplexer. The traditional method is to design the three separately and connect them with radio frequency cables. The disadvantage is that all three need a separate matching network to match the 50 ohm feeder, which brings about the problems of large volume and total weight. At the same time, too many matching networks bring about the disadvantage of large loss. [0003] With the development of wireless communication, the communication system tends to be miniaturized and integrated more and more. Therefore, there is a great demand for an integrated antenna-feeder system. The filte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q1/50H01Q21/00H01Q23/00
CPCH01Q1/38H01Q1/50H01Q21/00H01Q23/00
Inventor 薛嘉兴谢泽明张培升方升
Owner SOUTH CHINA UNIV OF TECH
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