CN110957567A

CN110957567A - Dual-polarization duplex oscillator and antenna

Info

Publication number: CN110957567A
Application number: CN201911378923.XA
Authority: CN
Inventors: 王强; 陆国标; 张鑫桢
Original assignee: Comba Telecom Technology Guangzhou Ltd
Current assignee: Comba Telecom Technology Guangzhou Ltd
Priority date: 2019-12-27
Filing date: 2019-12-27
Publication date: 2020-04-03

Abstract

The invention provides a dual-polarized duplex oscillator and an antenna, which comprise four radiating arms arranged in central symmetry and two dielectric substrates arranged perpendicular to each other, wherein two feeders working at different frequency bands are arranged on the dielectric substrates, the two feeders on each dielectric substrate feed a group of radiating arms arranged diagonally, and the directions of feed currents of the two feeders on the same dielectric substrate are opposite. Through setting up two mutually perpendicular's dielectric substrate, feeder on every dielectric substrate is two radiating arm feeds that the diagonal set up, has realized the dual polarized radiation direction of oscillator, and because the frequency channel of two feeders on same dielectric substrate is different, two feeders are the radiating arm feed that a set of diagonal set up, make two radiating arms can receive and transmit radiation signal simultaneously, have realized the function of duplex, need not plus the duplexer or set up the dual polarized oscillator of two different frequencies, simple structure is compact, and the complexity is reduced, also reduces holistic loss.

Description

Dual-polarization duplex oscillator and antenna

Technical Field

The invention relates to the technical field of mobile communication, in particular to a dual-polarized duplex oscillator and an antenna.

Background

With the advance of 4G network construction in various regions around the world, 5G gradually starts to be tried, and antennas supporting multiple network systems become urgent needs of various operators, so that multi-frequency antennas become the first choice of various operators. At present, two ways of realizing dual polarization and transceiving duplex simultaneously are mainly provided, one way is realized by respectively connecting two dual-polarized oscillators with different frequencies with corresponding filters and matching networks; the other is realized by connecting two duplexers by using a broadband dual-polarized oscillator. Both of these approaches increase the size, loss, and complexity of the system.

Disclosure of Invention

The invention aims to provide a dual-polarized duplex oscillator which can simplify the structure and reduce the loss.

Another object of the present invention is to provide an antenna using the dual-polarized duplex element.

In order to achieve the purpose, the invention provides the following technical scheme:

a dual-polarized duplex oscillator comprises four radiating arms arranged in central symmetry and two mutually perpendicular medium substrates, wherein two feeders working at different frequency bands are arranged on each medium substrate, the two feeders on each medium substrate feed a group of radiating arms arranged diagonally, and the directions of feed currents of the two feeders on the same medium substrate are opposite.

Further setting: the dual-polarized duplex oscillator further comprises four baluns, each balun is correspondingly connected with the radiating arm, and an installation groove for the medium substrate to be inserted and fixed is formed in each balun along the diagonal direction of the duplex oscillator.

Further setting: the balun and the radiation arm are integrally formed in a die-casting mode.

Further setting: the feeder line comprises a filter section for filtering, an impedance transformation section for adjusting impedance and a coupling section for coupling and connecting with the radiation arm, wherein the impedance transformation section is connected with the coupling section, and the filter section is connected with the impedance transformation section.

Further setting: the feeder line comprises a feed end, the coupling section extends vertically and is arranged in the mounting grooves of the two baluns corresponding to the feed end, the impedance change section extends upwards and vertically from the feed end to the top of the dielectric substrate and then bends and extends to be connected with the coupling section, and the impedance change section is provided with an open-circuit branch or a short-circuit branch near the feed end to form the filter section.

Further setting: the feed end is arranged at the bottom of the dielectric substrate and is used for being connected with a feed cable so as to feed the feed line.

Further setting: the two feeder lines are respectively arranged on two sides of the dielectric substrate.

Further setting: and the middle parts of the two medium substrates are respectively provided with a mounting gap which enables the two medium substrates to be mutually crossed and spliced along the vertical direction.

The invention also provides an antenna which comprises the dual-polarized duplex oscillator.

Compared with the prior art, the scheme of the invention has the following advantages:

1. in the dual-polarized duplex oscillator, two mutually perpendicular medium substrates are arranged, the feeder line on each medium substrate feeds the two radiation arms arranged diagonally, so that the dual-polarized radiation direction of the oscillator is realized, and the two feeder lines feed a group of diagonally arranged radiation arms due to different frequency bands of the two feeder lines on the same medium substrate, so that the two radiation arms can simultaneously receive and transmit signals with different frequencies, the duplex function is realized, a duplexer or two dual-polarized oscillators with different frequencies are not required to be additionally arranged, the structure is simple and compact, the complexity is reduced, and the integral loss is also reduced.

2. In the antenna, the dual-polarized duplex oscillator is adopted, the duplex function can be realized without an external duplexer, the integral structure of the antenna is reduced, the antenna is more miniaturized, and the loss of the antenna is reduced.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The foregoing and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a top view of an embodiment of a dual polarized duplex oscillator of the present invention;

fig. 2 is a schematic structural diagram of an embodiment of a dual-polarized duplex oscillator according to the present invention;

FIG. 3 is a schematic structural diagram of one of the dielectric substrates according to the present invention;

fig. 4 is a schematic structural diagram of another dielectric substrate according to the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative only and should not be construed as limiting the invention.

As shown in fig. 1 to 4, the present invention provides an antenna, which includes a dual-polarized duplex oscillator, where the dual-polarized duplex oscillator includes four radiating arms 1 arranged in central symmetry and two dielectric substrates 2 arranged perpendicular to each other, two feeders 3 working in different frequency bands are arranged on the dielectric substrate 2, two feeders 3 of each dielectric substrate 2 feed a group of radiating arms 1 arranged diagonally, specifically, the two feeders 3 are both coupled with the two radiating arms 1 arranged diagonally, and the feeding current directions of the two feeders 3 on the same dielectric substrate 2 are opposite. Preferably, the two feed lines 3 on each dielectric substrate 2 are respectively arranged at two sides of the dielectric substrate 2, and the two feed lines 3 do not overlap along the projection area of the dielectric substrate 2.

Through setting up two mutually perpendicular's dielectric substrate 2, feeder 3 on every dielectric substrate 2 is two radiating arm 1 feeds that the diagonal angle set up, the dual polarized radiation direction of oscillator has been realized, and because the frequency channel of two feeder 3 on the same dielectric substrate 2 is different, two feeder 3 are the same radiating arm feed that the diagonal angle set up, make two radiating arm 1 can receive and launch the signal of two kinds of different frequency channels simultaneously, the function of duplex has been realized, need not additionally to add the duplexer or set up the dual polarized oscillator of two different frequencies, moreover, the steam generator is simple and compact in structure, the complexity is reduced, the holistic loss is also reduced.

Further, the dual-polarized duplex oscillator further comprises four baluns 4, each balun 4 is correspondingly connected with the radiating arm 1, and preferably, the baluns 4 and the radiating arm 1 are integrally formed through die casting. In the present embodiment, a space is formed between two adjacent radiation arms 1 and between two adjacent baluns 4. The length of the radiation arm 1 is 0.25 times of the wavelength of the central frequency of the working frequency band, and the height is 0.25 times of the central frequency of the working frequency band, and the working frequency band can be 1695-. In the embodiment, the operating frequency ranges of the two feed lines 3 on the same dielectric substrate 2 are 1695-.

An installation groove 41 into which the dielectric substrate 2 can be inserted is formed in the balun 4 along the diagonal direction of the duplex oscillator, and the installation groove 41 extends to the top of the radiation arm 1. Through set up mounting groove 41 on balun 4, mounting groove 41 can provide limiting displacement for dielectric substrate 2's installation, makes dielectric substrate 2 be connected more stably with balun 4, also makes the whole occupation space of oscillator littleer, and is more miniaturized.

Further, the middle portions of the two dielectric substrates 2 are respectively and correspondingly provided with mounting notches 21 along the vertical direction, so that the two dielectric substrates 2 are mutually crossed, inserted and fixed, specifically, the mounting notch 21 of one of the dielectric substrates 2 is arranged downwards, and the mounting notch 21 on the other dielectric substrate 2 is arranged upwards. When assembling the two dielectric substrates 2, the two dielectric substrates 2 are placed perpendicular to each other, and the two mounting notches 21 on the two dielectric substrates 2 are inserted oppositely, so that the two dielectric substrates 2 are fixed to each other.

In the present embodiment, the feeder line 3 includes a filter section 31 for filtering, an impedance transformation section 32 for adjusting impedance, and a coupling section 33 for coupling with the radiation arm 1 and feeding the radiation arm 1. Specifically, the feeder line 3 further includes a feeding end 34, the coupling section 33 extends vertically and is disposed in the mounting grooves 41 of the two baluns 4 corresponding to the feeding end 34, the impedance transformation section 32 extends vertically from the feeding end 34 to the top of the dielectric substrate 2, and then bends and extends to be connected with the coupling section 33, and an open-circuit branch or a short-circuit branch is disposed at a position of the impedance transformation section 32 close to the feeding end 34 to form the filter section 31.

In this embodiment, the feeding end 34 is disposed at the bottom of the dielectric substrate 2, and the feeding end 34 is used for being connected with a feeding cable so as to feed the feeding line 3, specifically, the feeding cable is connected to the bottom of the balun 4, an inner core of the feeding cable is connected with the feeding end 34, and an outer conductor thereof is connected with the balun 4.

By arranging the feeder line 3 on the medium substrate 2 and arranging the filter section 31 on the feeder line 3, the dual-polarized filter characteristics are integrated under the condition that the extra size is not increased by the oscillator, two dual-polarized different frequency band working systems are simultaneously realized in one oscillator, the problems of insertion loss and extra size caused by the fact that the dual-polarized filter antenna is realized through a cascade mode in the prior art are solved, and the performances of high isolation degree and high gain of the oscillator can be realized. In addition, the array structure formed by the oscillators is compact and simple, the antenna is more miniaturized, the interference among all frequency bands is small, and good radiation indexes and circuit indexes are realized.

The foregoing is only a partial embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A dual-polarized duplex oscillator is characterized in that: the antenna comprises four radiating arms arranged in central symmetry and two medium substrates arranged perpendicular to each other, wherein two feeders working at different frequency bands are arranged on each medium substrate, the two feeders on each medium substrate feed a group of radiating arms arranged diagonally, and the directions of feed currents of the two feeders on the same medium substrate are opposite.

2. The dual polarized duplex vibrator of claim 1, wherein: the antenna also comprises four baluns, each balun is correspondingly connected with the radiating arm, and an installation groove for the medium substrate to be inserted and fixed is formed in the baluns along the diagonal direction of the duplex oscillator.

3. The dual polarized duplex vibrator of claim 2, wherein: the balun and the radiation arm are integrally formed in a die-casting mode.

4. The dual polarized duplex vibrator of claim 2, wherein: the feeder line comprises a filter section for filtering, an impedance transformation section for adjusting impedance and a coupling section for coupling and connecting with the radiation arm, wherein the impedance transformation section is connected with the coupling section, and the filter section is connected with the impedance transformation section.

5. The dual polarized duplex vibrator of claim 4, wherein: the feeder line comprises a feed end, the coupling section extends vertically and is arranged in the mounting grooves of the two baluns corresponding to the feed end, the impedance change section extends upwards and vertically from the feed end to the top of the dielectric substrate and then bends and extends to be connected with the coupling section, and the impedance change section is provided with an open-circuit branch or a short-circuit branch near the feed end to form the filter section.

6. The dual polarized duplex vibrator of claim 5, wherein: the feed end is arranged at the bottom of the dielectric substrate and is used for being connected with a feed cable so as to feed the feed line.

7. The dual polarized duplex vibrator of claim 1, wherein: the two feeder lines are respectively arranged on two sides of the dielectric substrate.

8. The dual polarized duplex vibrator of claim 1, wherein: and the middle parts of the two medium substrates are respectively provided with a mounting gap which enables the two medium substrates to be mutually crossed and spliced along the vertical direction.

9. An antenna, characterized by: comprising the dual polarized duplexed oscillator of any of claims 1 through 8.