A Broadband High Frequency Low Loss Uniform Radiation Leakage Coaxial Cable
A leaky coaxial cable, low-loss technology, used in circuits, electrical components, slot antennas, etc., can solve problems such as narrow use frequency bands, poor overall radiation performance and attenuation performance, and inability to weigh performance indicators. Good performance and attenuation performance
Active Publication Date: 2015-09-16
JIANGSU HENGXIN TECH CO LTD
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Problems solved by technology
[0007] The Chinese patent No. 200810218637.2 discloses a leaky coaxial cable. Each slot group includes four slots arranged in a double-eight shape; however, its overall radiation performance and attenuation performance are not very good, and the frequency band used is narrow. It is not possible to weigh the performance indicators of each frequency band of 800-2700MHZ
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Embodiment 1
[0033] This embodiment is a wide-band, high-frequency, low-loss uniform radiation leakage coaxial cable, the structure of which is as follows: figure 1As shown, it includes an inner conductor 1, an insulating layer 2, an outer conductor 3 and a sheath 4 in sequence from the inside to the outside. The outer conductor 3 is evenly spaced along the cable axis direction with several identical slot groups 9, and the slot groups 9 The corresponding slots are arranged in a figure-eight; each slot group 9 includes adjacent first slot groups 5 and second slot groups 6, and the first slot group 5 includes 8 identical first slots 7, the second slot grouping 6 includes 8 identical second slots 8, the length of the first slot 7 is greater than the length of the second slot 8; the structure of the outer conductor 3 is as figure 2 As shown, the 8 first slots of the first slot group 5 are arranged in a four-eight shape, and the included angle a between the 4 parallel first slots in group A an...
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The invention relates to a leaky coaxial cable, in particular to a wide / high-frequency, low-loss and homogeneous-radiation leaky coaxial cable. The wide / high-frequency, low-loss and homogeneous-radiation leaky coaxial cable sequentially comprises an inner conductor, an insulation layer, an outer conductor and a protection sleeve from inside to outside, wherein the outer conductor is uniformly provided with a plurality of the same slot seam groups at intervals along a cable axis direction, and corresponding slot seams in the slot seam groups are in inverse V-shaped arrangement; and each slot seam group comprises a first slot seam group and a second slot seam group which are adjacent, the first slot seam group comprises eight first slot seams which are the same, the second slot seam group comprises eight second slot seams which are the same, and the length of the first slot seams is larger than that of the second slot seams. According to the wide / high-frequency, low-loss and homogeneous-radiation leaky coaxial cable disclosed by the invention, by designing two groups inverse V-shaped slots which are in the same pitch and different slot lengths, the coupling loss and the attenuation performance of the wide / high-frequency, low-loss and homogeneous-radiation leaky coaxial cable within a 800-2700 MHz frequency range can be in a more uniform and ideal range.
Description
technical field [0001] The invention relates to a leaky coaxial cable, in particular to a leaky coaxial cable with wide frequency, high frequency, low loss and uniform radiation. Background technique [0002] With the continuous development of the mobile communication industry and the continuous improvement of human living standards, human communication has gradually shifted from the initial voice communication and low data flow communication (such as ordinary calls and text messages) to high data flow and multimedia communication methods, such as Mobile high-speed Internet access, videophone, video conferencing, Internet of Things, etc. As a result, today's mobile communication 3G (CDMA800, CDMA2000, WCDMA, TD-SCDMA system) network, WLAN, WiFi, 4G (LTE system) network was born; the system frequency band also changed from 800 / 900MHz→1800MHz→2100MHz→2400MHz→2700MHz, and In the mobile communication coverage of large-scale engineering fields such as subways and high-speed rail...
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IPC IPC(8): H01P3/06H01Q13/10
Inventor 刘中华徐国强李申月叶夏良张群
Owner JIANGSU HENGXIN TECH CO LTD