A rfid high frequency and ultra high frequency antenna integration device
An integrated device and ultra-high-frequency technology, applied in the field of RFID radio frequency, can solve the problems of narrow frequency band, heavy ceramic antenna, and the signal cannot cover the radome, etc., and achieve the effect of light weight and simple structure
Active Publication Date: 2018-05-11
SHENZHEN KELU INTERNET OF THINGS INFORMATION TECH CO LTD
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Problems solved by technology
In this way, the two antennas cannot be placed in the radome
[0004] If the ultra-high-frequency antenna uses a ceramic antenna, the high-frequency antenna uses the existing high-frequency coil, so that the two antennas can be placed in the radome, but the ceramic antenna is heavy and the frequency band is very narrow, generally only 10MHz
The coverage of this high-frequency antenna is 85mmX54mm, and the signal cannot cover the entire radome
[0005] Existing technologies have shortcomings in size, bandwidth, signal coverage and antenna weight, which cannot meet the requirements
Method used
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[0023] The specific embodiment of the present invention will be further described below in conjunction with accompanying drawing:
[0024] Such as figure 1 , 2 , Shown in 3, a kind of RFID high-frequency and ultra-high frequency antenna integration device, its device is to integrate high-frequency antenna and ultra-high frequency antenna in a radome;
[0025] The ultra-high frequency antenna adopts an ultra-wideband dual-polarized antenna, and the ultra-wideband dual-polarized antenna includes two coaxial lines and a copper sheet 13;
[0026] The radome includes an upper cover 1 and a lower cover 2, the two coaxial lines and a copper sheet 13 are closely attached to the upper cover 1, the shielding layer of the coaxial lines is exposed, and the coaxial lines include a first The coaxial line 11 and the second coaxial line 12; the two coaxial lines are used as the feed unit, and the copper sheet 13 is used as the radiation unit, forming an ultra-wideband dual-polarized antenna...
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The invention relates to the field of an RFID radio frequency technology, and in particular to an RFID high-frequency and ultrahigh-frequency antenna integration apparatus. A high-frequency antenna and an ultrahigh-frequency antenna are integrated in an antennal cover by the integration apparatus; the ultrahigh-frequency antenna adopts an ultra wide band dual-polarized antenna; the ultra wide band dual-polarized antenna comprises two coaxial lines and a copper sheet; the antenna cover comprises an upper cover and a lower cover; the two coaxial lines and the copper sheet are tightly adhered to the upper cover; a coaxial line shielding layer is exposed; the two coaxial lines are used as feed units, the copper sheet is used as a radiation unit, and the ultra wide band dual-polarized antenna with excellent performance is formed; a sealing slot is formed in the edge frame of the lower cover; wires wind in the sealing slot; and the high-frequency antenna is formed by the sealing slot and the wires. The high-frequency antenna is formed by winding around the overall sealing slot, so that the signal of the high-frequency antenna covers the overall antenna cover; the ultra wide band dual-polarized antenna is simple in structure, and relatively light in weight, so that the antenna has an ultra wide band circular polarization characteristic.
Description
technical field [0001] The invention relates to the field of RFID radio frequency technology, in particular to an RFID high-frequency and ultra-high-frequency antenna integration device. Background technique [0002] With the development of RFID, in the RFID handheld terminal, sometimes it is necessary to integrate the high-frequency antenna and the ultra-high-frequency antenna in a radome, and make the two work normally. signal, the UHF antenna should have a wide bandwidth and light weight to facilitate the work of the handheld terminal. [0003] The size of the medium and high frequency antenna in the prior art is within 85mm×54mm. If the ultra-wideband dual-polarization antenna is selected, its size is 120mmX115mm. The size of the radome is 135mmX125mm. In this way, the two antennas cannot be placed in the radome. [0004] If the ultra-high-frequency antenna is made of ceramic antenna, the high-frequency antenna uses the existing high-frequency coil, so that the two a...
Claims
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IPC IPC(8): H01Q1/42H01Q5/25
CPCH01Q1/42
Inventor 施耀胜
Owner SHENZHEN KELU INTERNET OF THINGS INFORMATION TECH CO LTD