A Ku / Ka dual-frequency shared manual portable communication antenna

Abstract

The present invention discloses a Ku / Ka dual-frequency common manual portable communication antenna, belonging to the field of antenna technology, and includes a sub-surface device, a main surface, a manual mount, a Ku / Ka integrated feed network, a Ku / Ka integrated power amplifier, legs, etc. The present invention adopts a Ku / Ka integrated design feed network and power amplifier, has a fast feed switching function, and is easy to operate; the sub-surface device adopts a dielectric support structure, has high rigidity and strength, has little effect on antenna gain and radiation pattern, has an adjustment function, and the adjustment process is simple and reliable; the manual mount adopts a worm gear device, has a compact and light structure, and is self-locking and reliable.

Description

Technical Field

[0001] The present invention relates to the technical field of antennas, and in particular to a Ku / Ka dual-frequency shared manual portable communication antenna. Background Art

[0002] With the rapid development of satellite communication technology, the demand for Ku / Ka dual-band antennas is becoming increasingly strong. Traditional dual-band manual portable communication antennas have the following limitations:

[0003] 1. Most systems use two independent feed networks and amplifiers. Replacing the feed network requires manual disassembly and assembly of the feed network and amplifier, which is complex and time-consuming, and cannot meet the requirements of emergency situations. Furthermore, the structural design is relatively cumbersome and bulky.

[0004] 2. The antenna sub-surface is mostly supported by a metal or fiberglass rod structure, and the position is mostly adjusted through two layers of nuts. The structure is complex and is not conducive to the electrical performance of the antenna.

[0005] 3. The azimuth and pitch mechanisms of the antenna mount use gears or pull rod sliding sleeves, which cannot meet the requirements of self-locking and fine adjustment, and have complex structures and poor reliability. Summary of the Invention

[0006] In view of this, the present invention provides a Ku / Ka dual-band shared manual portable communication antenna. The azimuth and elevation structures are simple and precise to adjust, the structure is compact and lightweight, and the self-locking is reliable.

[0007] In order to achieve the above object, the technical solution adopted by the present invention is:

[0008] A Ku / Ka dual-band manual portable communication antenna comprises a sub-surface device, a main surface and a manual mount; the sub-surface device is fixed to the center of the main surface by a sub-surface support rod; the antenna also comprises a manual mount, a leg structure, a Ku / Ka integrated feed source and a Ku / Ka integrated power amplifier; the Ku / Ka integrated feed source and the Ku / Ka integrated power amplifier are fixed to the back of the main surface by a bracket; the manual mount comprises a pitch structure and an azimuth structure, the pitch structure comprises a pitch worm gear and a pitch worm that mesh with each other, and the azimuth structure comprises an azimuth worm gear and an azimuth worm that mesh with each other; the pitch worm gear is fixedly connected to the bracket via a pitch axis located at the center thereof; the pitch structure is fixed to the azimuth worm gear via a mount chassis; the azimuth structure is located on the leg structure, and the two are connected by a bearing.

[0009] Furthermore, the sub-surface device includes a cover plate, a fixing bracket, a sub-surface, a medium cover, a baffle and a speaker arranged in sequence from top to bottom; an adjustment gasket for adjusting the distance between the sub-surface and the speaker is provided between the sub-surface and the fixing bracket.

[0010] Furthermore, the main surface is a petal-type structure, which includes multiple petals and a central reflective surface; the petals are fixedly connected by a locking device, and the petals and the central reflective surface are connected by a detachable hinge.

[0011] Furthermore, the leg structure includes three legs and a connecting frame, the legs are hinged at corresponding positions of the connecting frame, and an azimuth connecting hole is provided at the center of the connecting frame; a locking tube corresponding to the azimuth connecting hole is fixedly provided at the bottom of the azimuth worm gear, and the locking tube is located in the azimuth connecting hole; a fixed wrench is provided on one side of the azimuth connecting hole, and the fixed wrench is threadedly connected to the azimuth connecting hole and can extend into the azimuth connecting hole.

[0012] Furthermore, a handwheel is provided at one end of the pitch worm and the azimuth worm exposed from the frame chassis.

[0013] The beneficial effects of the above technical solution of the present invention are:

[0014] 1. The antenna of the present invention adopts Ku / Ka integrated design of feed network and power amplifier, with fast feed switching function, no need to disassemble the feed network and power amplifier, and efficient switching of frequency bands;

[0015] 2. The present invention adopts a sub-surface device with a dielectric support structure, which has high rigidity and strength, has little effect on the antenna gain and radiation pattern, has an adjustment function, and the adjustment process is simple and reliable;

[0016] 3. The seat frame of the present invention adopts a worm gear structure, which makes the azimuth and pitch adjustments simple and precise, has a compact and light structure, and is self-locking and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 : A front view of the overall structure of an embodiment of the present invention;

[0018] Figure 2 : Schematic diagram of the overall structure explosion of an embodiment of the present invention;

[0019] Figure 3 : Structural diagram of the secondary surface device in an embodiment of the present invention;

[0020] Figure 4 : Structural diagram of the main surface of the antenna in an embodiment of the present invention;

[0021] Figure 5 : Structural diagram of a manual seat frame in an embodiment of the present invention;

[0022] Figure 6 : Ku / Ka integrated feed network structure diagram of an embodiment of the present invention;

[0023] Figure 7 : Schematic diagram of the leg storage of an embodiment of the present invention.

[0024] Explanation of the reference numerals: sub-surface device 1, main surface 2, Ku / Ka integrated feed network 3, Ku / Ka integrated power amplifier 4, manual mount 5, support leg 6, speaker 7, baffle 8, dielectric cover 9, sub-surface 10, sub-surface fixing bracket 11, cover 12, lever 13, azimuth handwheel 14, pitch handwheel 15. DETAILED DESCRIPTION

[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0027] A Ku / Ka dual-band manual portable communication antenna comprises a sub-surface device, a main surface and a manual mount; the sub-surface device is fixed to the center of the main surface by a sub-surface support rod; the antenna also comprises a manual mount, a leg structure, a Ku / Ka integrated feed source and a Ku / Ka integrated power amplifier; the Ku / Ka integrated feed source and the Ku / Ka integrated power amplifier are fixed to the back of the main surface by a bracket; the manual mount comprises a pitch structure and an azimuth structure, the pitch structure comprises a pitch worm gear and a pitch worm that mesh with each other, and the azimuth structure comprises an azimuth worm gear and an azimuth worm that mesh with each other; the pitch worm gear is fixedly connected to the bracket via a pitch axis located at the center thereof; the pitch structure is fixed to the azimuth worm gear via a mount chassis; the azimuth structure is located on the leg structure, and the two are connected by a bearing.

[0028] Furthermore, the sub-surface device includes a cover plate, a fixing bracket, a sub-surface, a medium cover, a baffle and a speaker arranged in sequence from top to bottom; an adjustment gasket for adjusting the distance between the sub-surface and the speaker is provided between the sub-surface and the fixing bracket.

[0029] Furthermore, the main surface is a petal-type structure, which includes multiple petals and a central reflective surface; the petals are fixedly connected by a locking device, and the petals and the central reflective surface are connected by a detachable hinge.

[0030] Furthermore, the leg structure includes three legs and a connecting frame, the legs are hinged at corresponding positions of the connecting frame, and an azimuth connecting hole is provided at the center of the connecting frame; a locking tube corresponding to the azimuth connecting hole is fixedly provided at the bottom of the azimuth worm gear, and the locking tube is located in the azimuth connecting hole; a fixed wrench is provided on one side of the azimuth connecting hole, and the fixed wrench is threadedly connected to the azimuth connecting hole and can extend into the azimuth connecting hole.

[0031] Furthermore, a handwheel is provided at one end of the pitch worm and the azimuth worm exposed from the frame chassis.

[0032] The following is a more specific embodiment:

[0033] like Figure 1 and Figure 2 The figure shows a manual portable satellite communication antenna for Ku / Ka dual-band communication. The antenna comprises a secondary array 1, a primary array 2, a manual mounting bracket 5, a Ku / Ka integrated feed network 3, a Ku / Ka integrated power amplifier 4, and support legs 6. The Ku / Ka integrated feed network 3 and power amplifier 4 are mounted on the manual mounting bracket 5 and connected to the support legs 6 via a quick positioning mechanism. The primary array 2 is mounted on top of the manual mounting bracket 5, with the secondary array 1 fixed to the center of the primary array 2.

[0034] like Figure 3 As shown, the sub-surface device adopts a dielectric support structure with an adjustable sub-surface, including a speaker 7, a baffle 8, a dielectric cover 9, a sub-surface 10, a sub-surface fixing bracket 11, and a cover plate 12. By adding a dedicated adjustment gasket between the sub-surface 10 and the sub-surface fixing bracket 11, the distance between the sub-surface and the speaker can be adjusted to achieve multi-point adjustment of the antenna pattern.

[0035] like Figure 4 As shown, the main surface 2 is made of carbon fiber and is in a petal form. Each petal is connected by a locking device and a hinge device, which can be assembled efficiently and accurately. The antenna surface can be divided into six petals. After disassembly, the shape is regular and easy to store.

[0036] like Figure 5 As shown, the azimuth and elevation mechanisms of the manual mount 5 are both driven by worm gears. The azimuth axis is equipped with an azimuth handwheel 14, and the elevation axis is equipped with a pitch handwheel 15. Rotating the handwheels drives the worm gears, thereby adjusting the azimuth and elevation angles, and can achieve reliable self-locking at any angle. Pitch handwheels 15 are equipped at both ends of the elevation axis, ensuring convenient and accurate operation of the antenna at any angle. The overall structure is compact, and the transmission speed ratio is high.

[0037] like Figure 6 As shown, the Ku / Ka integrated feed network 3 is a Ku / Ka integrated design that operates in a time-sharing mode. Rotating the feed switching mechanism lever 13 switches the internal feed ports to the Ku or Ka band, enabling feed switching. The Ku-band operating polarization is linear, while the Ka-band operating polarization is circular. Adjustment of the Ku-band linear polarization plane is achieved via a Ku-band polarization rotation mechanism. Automatic locking devices are provided at both ends of the lever to ensure it stays in place.

[0038] Received signal: The beam hits the primary antenna surface, reflects from the primary surface to the secondary surface, and then enters the Ku / Ka integrated feed network. The feed network has two Ku and Ka output ports, which are connected to the Ku and Ka low-noise amplifiers respectively through waveguides.

[0039] Transmitting signal: The Ku / Ka integrated power amplifier generates Ku and Ka signals, which are transmitted from the Ku and Ka output ports through waveguides to the Ku / Ka integrated feed network, then irradiated onto the secondary surface, reflected to the primary surface, and reflected out again.

[0040] The power amplifier is a Ku / Ka integrated design, integrating Ku / Ka two frequency band components into one power amplifier, with a compact structure and improved switching efficiency.

[0041] like Figure 7 As shown, the legs 6 are foldable. The legs 6 are in a three-legged form and made of carbon fiber, which has high rigidity, strength and light weight. Each leg can be rotated and folded around the axis, making the storage size small and fast.

[0042] The connection and fixation between the secondary surface device, the main surface, the manual mount and the legs of the antenna all adopt a quick tool-free installation method, and can be quickly disassembled and installed by hand.

Claims

1. A Ku / Ka dual-band manual portable communication antenna, comprising a secondary surface device, a primary surface and a manual mount; the secondary surface device is fixed to the center of the primary surface by a secondary surface support rod; characterized in that: It also includes a manual mount, a leg structure, a Ku / Ka integrated feed source and a Ku / Ka integrated power amplifier; the Ku / Ka integrated feed source and the Ku / Ka integrated power amplifier are fixed to the back of the main surface through a bracket; the manual mount includes a pitch structure and an azimuth structure, the pitch structure includes a pitch worm wheel and a pitch worm gear that mesh with each other, and the azimuth structure includes an azimuth worm wheel and an azimuth worm gear that mesh with each other; the pitch worm wheel is fixedly connected to the bracket through a pitch axis located at the center thereof; the pitch structure is fixed to the azimuth worm wheel through a mount chassis; the azimuth structure is located on the leg structure, and the two are connected through a bearing; The end of the pitch worm and the azimuth worm exposed from the frame chassis is provided with a hand wheel; The sub-surface device comprises a cover plate, a fixing bracket, a sub-surface, a medium cover, a baffle and a speaker arranged in sequence from top to bottom; an adjustment gasket for adjusting the distance between the sub-surface and the speaker is arranged between the sub-surface and the fixing bracket.

2. The Ku / Ka dual-band shared manual portable communication antenna according to claim 1, characterized in that: The main surface is a petal-type structure, which includes a plurality of petal surfaces and a central reflective surface; the petal surfaces are fixedly connected by a locking device, and the petal surfaces and the central reflective surface are connected by a detachable hinge.

3. The Ku / Ka dual-band shared manual portable communication antenna according to claim 1, characterized in that: The leg structure includes three legs and a connecting frame, the legs are hinged at corresponding positions of the connecting frame, and an azimuth connecting hole is provided at the center of the connecting frame; a locking tube corresponding to the azimuth connecting hole is fixedly provided at the bottom of the azimuth worm gear, and the locking tube is located in the azimuth connecting hole; a fixed wrench is provided on one side of the azimuth connecting hole, and the fixed wrench is threadedly connected to the azimuth connecting hole and extends into the azimuth connecting hole.

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