Novel handset antenna

A handset and antenna technology, applied in the field of communication, can solve the problems of low gain, poor front-to-back ratio of the antenna, and high cost, and achieve the effects of suppressing electromagnetic energy, reducing backward radiation, and easy batch processing

Active Publication Date: 2015-03-25
ZTE INTELLIGENT IOT TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, some existing RFID reader antennas are often large in size, which is not suitable for practical application scenarios.
Some of the current miniaturized antennas are mostly filled with thick dielectrics, or the method of increasing the dielectric constant of the substrate.

Method used

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  • Novel handset antenna
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Examples

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Embodiment Construction

[0018] The present invention is described in more detail according to accompanying drawing now, as Figure 1-4 As shown, the novel handheld antenna of the present invention includes an antenna reflector 2, an antenna radiation plate 1, a matching resistance capacitance 13, an antenna shell, a support foam 3 between the radiation plate 1 and the reflector 2, and a connecting feeder. The radiation plate 1 of the antenna itself can effectively radiate energy, and a reflector 2 is placed under the radiation plate 1. The reflector 2 is a specially designed multi-layer resonant structure, which can effectively reduce this direction (below the radiation plate 1). ) of electromagnetic energy radiation, thereby reducing the antenna gain in that direction, thereby increasing the front-to-back ratio of the antenna. And the reflector 2 will not affect the impedance bandwidth of the antenna itself, so that the thickness of the antenna can be made relatively small, and the front-to-back rat...

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PUM

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Abstract

The invention provides a novel handset antenna which comprises a radiation plate. A reflecting plate is placed below the radiation plate. Supporting foam is arranged between the reflecting plate and the reflecting plate. The reflecting plate is of a multilayer resonance structure. The radiation plate comprises a dielectric plate. Two metal rings are arranged on the upper surface of the dielectric plate, and coupling capacitance effect can be formed between the two metal rings. A matching zone is arranged on the dielectric plate below the metal rings. Parallel two-line feed and symmetrical matching resistance capacitance modes are used in the zone. Two copper paving pasting pieces are arranged at the portions, close to the bottom side, of the upper surface and the lower side of the dielectric plate. The two opposite copper paving pasting pieces are connected through a metallization via hole. The upper surfaces of parallel two lines are communicated with the two copper paving pasting pieces respectively. The two copper paving pasting pieces are connected with feeder lines in a welding mode. The novel handset antenna is small in size, the front-back ratio is good, the antenna is of the resonance structure which can restrain electromagnetism energy, antenna backward radiation is effectively lowered, the impedance bandwidth ratio is good, the antenna is made of FR4 materials, batch machining is easy, cost is low, and mounting is convenient.

Description

technical field [0001] The invention belongs to the communication field, and in particular relates to a novel handheld antenna, which can be used in radio frequency identification (RFID), indoor coverage and other civil communication fields. Background technique [0002] The current radio frequency identification (RFID) industry is developing very fast, and it has begun to be widely used in many fields such as transportation, logistics, and monitoring. RFID system consists of readers, reader antennas and tags. The reader transmits a signal to the tag, and the tag reflects the signal to the reader antenna, forming a complete communication link. In the communication process, since the tags are often placed in irregular positions, the reader antenna is required to be a circularly polarized antenna, which can effectively read tags placed at different angles and positions. The radiation electric field of the circularly polarized antenna is rotating, so that it can communicate w...

Claims

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Application Information

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IPC IPC(8): H01Q1/38H01Q1/50H01Q15/14H01Q19/10
Inventor 冯春楠
Owner ZTE INTELLIGENT IOT TECH
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