Four-ring type oppositely-positioned super small high gain planar antenna

Abstract

The invention relates to a four-ring opposite super-miniature high-gain plane antenna, which comprises a first radiation part and a second radiation part. The first radiation part comprises a first non-closed ring and a second non-closed ring which are parallel, and the secondary radiation part comprises a third non-closed ring and a fourth non-closed ring which are also parallel. Each of the first, the second, the third and the fourth non-closed rings is a circle that roughly encircles over half of a complete ring. Each of the first, the second, the third and the fourth non-closed rings of the first and the second radiation parts is provided with a partial ring section overlapped at a tail of an opening ring section of the non-closed ring; a first alignment axis perpendicularly intersects approximately with the overlapping line of the partial ring section overlapped of the first and the second non-closed rings; and a second aligning axis perpendicularly intersects approximately with the overlapping line of the partial ring section overlapped of the third and the fourth non-closed rings. The first and the second radiation parts are parallel and opposite, the first and the second alignment axes of which are overlapped in order to roughly align the first, the second, the third and the fourth non-closed rings of the first and the second radiation parts.

Description

technical field [0001] The present invention relates to an ultra-small, high-gain planar antenna (miniaturized high-gainflat antenna), in particular to a four-ring type for the microwave frequency range of giga-hertz, suitable for indoor environment directivity Opposite ultra-small high-gain planar antennas. Background technique [0002] Ultra-small planar antennas are widely used, such as various node devices in wireless LAN / WAN, including fixed routers, and portable laptop computers and pocket-type USB (Universal Serial Bus, universal serial bus) peripheral accessories such as wireless network interface card (wireless NIC) all need to use small planar antennas to perform wireless signal receiving and / or transmitting operations. [0003] figure 1 It shows that a typical small planar antenna in the prior art can be applied to a wireless network device as an antenna for transmitting and receiving radio signals. figure 1 The existing conventional planar antenna 100 is mainl...

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Problems solved by technology

[0012] Another object of the present invention is to provide a new structure of four-loop opposed ultra-small high-gain planar antenna, the technical problem to be solved is to make it possible Avoid the excessive correlation of each channel in the space, and use the effect of space diversity and radiation field diversity to avoid the loss of channel bandwidth, and reduce the correlation of each channel in space to increase the transmission capacity of each channel, so as to be more practical

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