Miniaturized Ku wave band wave beam direction adjustable microwave receiving equipment

Abstract

The invention relates to the technical field of Ku wave band receiving, in particular to a miniaturized ku wave band wave beam direction adjustable microwave receiving device which comprises an antenna layer, a low noise amplifier layer, a phase shift layer and a control layer which are arranged in a stacked mode. The antenna layer is provided with a plurality of radio frequency channels, each radio frequency channel is provided with a plurality of groups of antenna array elements, each group of antenna array elements comprises two antenna array elements, and the two antenna array elements adopt a double-feed design so as to reduce the length of a feed network and further reduce signal loss; a single radio frequency channel is provided with eight antenna array elements, and compared with one common antenna array element, the signal receiving capability and efficiency are improved; the same group of array antennas adopts a double-feed design, and the length of a feed network is reduced, so that the loss of signals in a transmission process is reduced, and the quality and the stability of the signals are improved; according to the invention, the technical problems that the gain is limited and the beam direction is difficult to adjust when the single-array-element antenna equipment receives the Ku wave band in the prior art are solved.

Description

Technical Field

[0001] The invention relates to the technical field of Ku-band receiving, and in particular to a miniaturized Ku-band microwave receiving device with adjustable beam pointing. Background Art

[0002] Ku-band reception refers to the use of specific equipment to receive microwave signals with a frequency range of 12-18GHz, which is widely used in satellite communications, radar detection, wireless communications and other fields. Ku-band microwave signals can be received using a single-element antenna device. The single-element antenna is in the propagation space of the Ku-band microwave signal. When the electric field of the microwave signal acts on the metal part of the antenna, an induced current is generated on the antenna, thereby converting the energy of the electromagnetic wave into an electrical signal. The weak signal output from the antenna first enters the low-noise amplifier. The transistors in the LNA work under appropriate bias conditions to amplify the input signal.

[0003] The amplified signal contains the Ku-band signal and some interference signals from other frequency bands. The filter only allows the signal within the Ku-band frequency range to pass through due to its frequency selection characteristics, while greatly attenuating the signals in other frequency bands. The filtered Ku-band high-frequency signal enters the down-converter. The local oscillator generates a stable high-frequency signal, which is mixed with the input Ku-band signal in the mixer. The converted intermediate frequency signal enters the signal processing unit.

[0004] Compared with multi-element antenna equipment, the structure of single-element antenna equipment is obviously simpler. It only contains a basic antenna unit and does not require complex array layout and feeding network design, which makes the design, manufacturing and debugging process of the equipment relatively easy and the cost is relatively low. However, the radiation and receiving capabilities of single-element antennas are relatively weak, and their gain is usually lower than that of multi-element antennas. In the Ku band, signals are susceptible to attenuation during propagation, especially in long-distance communications or when the signal source power is low. Single-element antennas may not be able to receive signals of sufficient strength, resulting in a decrease in signal quality and affecting the accuracy of communication or detection. At the same time, the beam pointing of a single-element antenna is relatively fixed. Once installed, its main receiving direction is basically determined, and it is difficult to flexibly adjust according to actual needs. Summary of the invention

[0005] The present invention provides a miniaturized Ku-band microwave receiving device with adjustable beam pointing, so as to solve the technical problems in the prior art that a single-element antenna device has limited gain and is difficult to adjust the beam pointing when receiving the Ku-band.

[0006] In order to solve the above problems, the miniaturized Ku-band beam-pointing adjustable microwave receiving device provided by the present invention adopts the following technical solutions: A miniaturized Ku-band microwave receiving device with adjustable beam pointing comprises a stacked antenna layer, a low noise amplifier layer, a phase shift layer and a control layer; the antenna layer has a plurality of radio frequency channels, each radio frequency channel is configured with a plurality of groups of antenna array elements, each group of antenna array elements comprises two antenna array elements, and the two antenna array elements adopt a dual-feed design to reduce the length of the feed network and thus reduce signal loss.

[0007] Furthermore, the number of the radio frequency channels is 8, the 8 radio frequency channels are arranged side by side in the horizontal direction, each radio frequency channel includes 4 groups of antenna array elements, and the 4 groups of antenna array elements are arranged side by side in the vertical direction to form an integrated arrangement of 64 array elements.

[0008] Furthermore, the antenna layer and the low noise amplifier layer adopt a back-to-back modular design and are connected by bolts to form an antenna front-end module; the phase shift layer and the control layer adopt a back-to-back modular design and are connected by bolts to form a phase shift control module, and the phase shift control module also integrates a synthesis network.

[0009] Furthermore, the low noise amplifier layer has 8 installation cavities corresponding to 8 radio frequency channels, and each installation cavity has a set of low noise amplifiers corresponding to the radio frequency channels to achieve low noise amplification of Ku-band signals.

[0010] Furthermore, the phase shift layer has 8 phase shift channels for respectively inputting the signals amplified by the low noise amplifiers of the various RF channels, and the control layer is used to independently control the phases of the various phase shift channels and synthesize them into one output to realize Ku-band beam pointing adjustable microwave reception.

[0011] Furthermore, the antenna front-end module and the phase shift control module are connected in a detachable manner to facilitate loading and unloading.

[0012] Furthermore, the antenna front-end module and the phase shift control module are connected by plugging in upper and lower layers.

[0013] The miniaturized Ku-band beam-pointing adjustable microwave receiving device provided by the present invention has the following beneficial effects: a single radio frequency channel is equipped with 8 antenna array elements, which improves the signal receiving capability and efficiency compared with the common 1 antenna array element; the same group of array antennas adopts a dual-feed design, which reduces the length of the feed network, thereby reducing the signal loss during the transmission process and improving the signal quality and stability; The device adopts a miniaturized integrated design, integrating 64 array elements, and further reduces the size of the device through the upper and lower layer plug-in design of the antenna front-end module and the phase shift control module; this highly integrated design is conducive to the portability of the device and its use in application scenarios with limited space; the antenna layer and the low noise amplifier layer, the phase shift layer and the control layer constitute modules respectively, which is easy to produce, assemble and maintain. If a module fails, it can be replaced and repaired more conveniently; At the same time, each RF channel integrates a low-noise amplifier to achieve low-noise amplification of Ku-band signals, improve the signal-to-noise ratio of the signal, and make the received signal clearer and more accurate; the amplified signals of each channel are input into the phase shifter of the corresponding channel respectively, and the phase of each channel is independently controlled in coordination with the control layer and then synthesized into one output. This design can control the beam pointing more accurately, improving the directivity and receiving performance of the device.

[0014] In summary, through the above configuration, the present invention effectively solves the technical problems in the prior art that the gain of a single-element antenna device is limited and the beam pointing is difficult to adjust when receiving the Ku band. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] By reading the following detailed description with reference to the accompanying drawings, the above and other objects, features and advantages of the exemplary embodiments of the present invention will become readily understood. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein: Figure 1 is a schematic diagram of the antenna layer in the present invention; Figure 2 It is a schematic diagram of the low noise layer in the present invention; Figure 3 is a schematic diagram of the phase shift layer in the present invention; Figure 4 is a schematic diagram of the control layer in the present invention; Figure 5 It is a side cross-sectional view of the present invention (showing the plug-in structure).

[0016] Description of reference numerals: 1. Antenna layer; 2. Low noise amplifier layer; 3. Phase shift layer; 4. Control layer; 5. RF channel; 6. Antenna array element; 7. Installation cavity; 8. Low noise amplifier; 9. Phase shift channel; 10. Socket; 11. Plug block. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0018] It should be noted that the main concept of the present invention is to set up multiple RF channels 5, and a single RF channel 5 is equipped with 8 antenna array elements 6, which improves the signal receiving capability and efficiency compared with the common 1 antenna array element 6; the same group of array antennas adopts a dual-feed design, which reduces the length of the feeding network, thereby reducing the signal loss during the transmission process and improving the signal quality and stability.

[0019] After introducing the basic principle of the present invention, various non-limiting embodiments of the present invention are described in detail below. The number of any element in the drawings is for illustration and not for limitation, and any naming is only for distinction and does not have any limiting meaning.

[0020] The principle and spirit of the present invention are explained in detail below with reference to several representative embodiments of the present invention.

[0021] Embodiment 1 of the miniaturized Ku-band beam-pointing adjustable microwave receiving device provided by the present invention: like Figures 1 to 5 As shown, the miniaturized Ku-band beam-pointing adjustable microwave receiving device includes a stacked antenna layer 1, a low noise amplifier layer 2, a phase shift layer 3 and a control layer 4; the antenna layer 1 has a plurality of radio frequency channels 5, each radio frequency channel 5 is configured with a plurality of groups of antenna array elements 6, each group of antenna array elements 6 includes two antenna array elements 6, and the two antenna array elements 6 adopt a dual-feed design to reduce the length of the feeding network and thus reduce signal loss.

[0022] Specifically, the number of RF channels 5 is 8, and the 8 RF channels 5 are arranged side by side in the horizontal direction. Each RF channel 5 includes 4 groups of antenna array elements 6, and the 4 groups of antenna array elements 6 are arranged side by side in the vertical direction to form 64 array elements arranged in an integrated manner.

[0023] Regarding the specific stacking method. The antenna layer 1 and the low noise amplifier layer 2 adopt a back-to-back modular design and are connected by bolts to form an antenna front-end module; the phase shift layer 3 and the control layer 4 adopt a back-to-back modular design and are connected by bolts to form a phase shift control module, and the phase shift control module also integrates a synthetic network. The antenna layer 1 and the low noise amplifier layer 2, the phase shift layer 3 and the control layer 4 constitute modules respectively, which is easy to produce, assemble and maintain. If a module fails, it can be replaced and repaired more conveniently; About the low noise amplifier layer 2. The low noise amplifier layer 2 has eight installation cavities 7 corresponding to eight radio frequency channels 5, and each installation cavity 7 has a set of low noise amplifiers 8 corresponding to the radio frequency channels 5 to achieve low noise amplification of Ku-band signals.

[0024] The phase shift layer 3 has 8 phase shift channels 9 for respectively inputting the signals amplified by the low noise amplifier 8 of each RF channel 5. The control layer 4 is used for independently controlling the phases of each phase shift channel 9 and synthesizing them into one output to realize Ku-band beam pointing adjustable microwave reception.

[0025] Each RF channel 5 integrates a low noise amplifier to achieve low noise amplification of Ku-band signals, improve the signal-to-noise ratio of the signal, and make the received signal clearer and more accurate; the amplified signals of each channel are respectively input into the phase shifter of the corresponding channel, and the phase of each channel is independently controlled in coordination with the control layer 4 and then synthesized into one output. This design can control the beam pointing more accurately, improving the directivity and receiving performance of the device.

[0026] In this embodiment, the antenna front-end module and the phase shift control module are connected in a detachable manner to facilitate loading and unloading. Specifically, the antenna front-end module and the phase shift control module are connected in an upper and lower layer through a plug-in structure, and the plug-in structure includes a socket 10 and an insert block 11.

[0027] The working principle of the miniaturized Ku-band beam-pointing adjustable microwave receiving device provided by the present invention is: the front-end antenna uses 64 array elements to receive microwave signals, and a single radio frequency channel 5 is allocated with 8 antenna array elements 6 to realize the Ku-band microwave signal interface, with a total of 8 radio frequency channels 5, and each radio frequency channel 5 is integrated with a set of low-noise amplifiers 8 to realize low-noise amplification of Ku-band signals. The amplified signals of each channel are respectively input into the phase shifter of the corresponding channel, and the phases of each channel are independently controlled in cooperation with the control layer 4, and then synthesized into one output, finally realizing Ku-band beam-pointing adjustable microwave reception.

[0028] Embodiment 2 of the miniaturized Ku-band beam-pointing adjustable microwave receiving device provided by the present invention: The main difference between it and Example 1 is: In Example 1, the number of RF channels is 8, and the 8 RF channels are arranged side by side in the horizontal direction. Each RF channel includes 4 groups of antenna array elements, and the 4 groups of antenna array elements are arranged side by side in the vertical direction to form an integrated arrangement of 64 array elements.

[0029] In this embodiment, the number of radio frequency channels and the number of antenna array elements can be adjusted according to actual needs.

[0030] Embodiment 3 of the miniaturized Ku-band beam-pointing adjustable microwave receiving device provided by the present invention: The main difference between it and Example 1 is: In Example 1, the antenna front-end module and the phase shift control module are connected by plugging them into each other in upper and lower layers.

[0031] In this embodiment, the antenna front-end module and the phase shift control module are connected by bolts.

[0032] According to the above description of this specification, those skilled in the art may also understand that the terms used below, such as "up", "down", "front", "back", "left", "right", "width", "horizontal", "top", "bottom", "inside", "outside" and the like, which indicate orientation or positional relationships, are based on the orientation or positional relationships shown in the drawings of this specification, and are only for the purpose of facilitating the explanation of the scheme of the present invention and simplifying the description, rather than explicitly or implicitly indicating that the devices or elements involved must have the specific orientation, be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms cannot be understood or interpreted as limitations on the scheme of the present invention.

[0033] In addition, in the description of this specification, “plurality” means at least two, for example, two, three or more, etc., unless otherwise clearly and specifically defined.

Claims

1. A miniaturized Ku-band microwave receiving device with adjustable beam pointing, characterized in that: It includes a stacked antenna layer, a low noise amplifier layer, a phase shift layer and a control layer; the antenna layer has multiple RF channels, each RF channel is configured with multiple groups of antenna array elements, each group of antenna array elements includes two antenna array elements, and the two antenna array elements adopt a dual-feed design to reduce the length of the feeding network and thus reduce signal loss.

2. The miniaturized Ku-band microwave receiving device with adjustable beam pointing according to claim 1, characterized in that: The number of the radio frequency channels is 8, and the 8 radio frequency channels are arranged side by side in the horizontal direction. Each radio frequency channel includes 4 groups of antenna array elements, and the 4 groups of antenna array elements are arranged side by side in the vertical direction to form 64 array elements arranged in an integrated manner.

3. The miniaturized Ku-band microwave receiving device with adjustable beam pointing according to claim 2, characterized in that: The antenna layer and the low noise amplifier layer adopt a back-to-back modular design and are connected by bolts to form an antenna front-end module; the phase shift layer and the control layer adopt a back-to-back modular design and are connected by bolts to form a phase shift control module, and the phase shift control module also integrates a synthesis network.

4. The miniaturized Ku-band microwave receiving device with adjustable beam pointing according to claim 3, characterized in that: The low noise amplifier layer has 8 installation cavities corresponding to 8 radio frequency channels, and each installation cavity has a set of low noise amplifiers corresponding to the radio frequency channels to achieve low noise amplification of Ku-band signals.

5. The miniaturized Ku-band microwave receiving device with adjustable beam pointing according to claim 4, characterized in that: The phase shift layer has 8 phase shift channels for respectively inputting the signals amplified by the low noise amplifiers of the various radio frequency channels, and the control layer is used for independently controlling the phases of the various phase shift channels and synthesizing them into one output to realize Ku-band beam pointing adjustable microwave reception.

6. The miniaturized Ku-band microwave receiving device with adjustable beam pointing according to any one of claims 3 to 5, characterized in that: The antenna front-end module and the phase shift control module are connected in a detachable manner to facilitate loading and unloading.

7. The miniaturized Ku-band microwave receiving device with adjustable beam pointing according to claim 6, characterized in that: The antenna front-end module and the phase shift control module are connected by plugging in the upper and lower layers.

Images