Search

CN-224218387-U - Circular polarization multiport multifunctional receiving device

CN224218387UCN 224218387 UCN224218387 UCN 224218387UCN-224218387-U

Abstract

The utility model relates to microwave antenna, feed network, embedded system development, ground-air wireless communication technology, the utility model provides a circular polarization multiport multifunctional receiving device, comprising: the wireless radio frequency communication module comprises a Bluetooth module and a Wi-Fi module, wherein the working frequency band of the circularly polarized antenna is 2.4GHz-2.5GHz, and the working frequency band of the circularly polarized antenna covers Bluetooth and Wi-Fi communication frequency bands. The utility model realizes the miniaturization and compact operation recognition ground station wireless signal receiving system by using the multiport power divider network to connect the circularly polarized antenna with the wireless radio frequency communication module at the rear end.

Inventors

  • LIU YING
  • SHI CHANG
  • PANG KE
  • XU LIJUN

Assignees

  • 北京安擎智飞科技有限公司

Dates

Publication Date
20260508
Application Date
20250528

Claims (10)

  1. 1. The circularly polarized multi-port multifunctional receiving device is characterized by comprising a circularly polarized antenna (1), a power divider (2), a wireless radio frequency communication module and a main control module (7) which are electrically connected in sequence, wherein the wireless radio frequency communication module comprises a Bluetooth module and a Wi-Fi module (5), and the working frequency band of the circularly polarized antenna (1) is 2.4GHz-2.5GHz and covers Bluetooth and Wi-Fi communication frequency bands.
  2. 2. The circularly polarized multi-port multifunctional receiving device according to claim 1, wherein the Bluetooth module comprises one or more of a classical BT Bluetooth module (3), a BLE Bluetooth module (4) and a dual-mode Bluetooth module, the Bluetooth module and a Wi-Fi module (5) are integrated with a chip, a radio frequency circuit and a radio frequency switch (13), the output end of the power divider (2) is respectively connected to the input end of the radio frequency switch (13) of each module through a radio frequency connecting wire, the output end of the radio frequency switch (13) is connected with the corresponding radio frequency circuit, and the chip of each module drives the radio frequency switch (13) through a control signal so as to switch on and off signal connection between the radio frequency circuit and the power divider (2).
  3. 3. A circularly polarized multiport multifunction receiver according to claim 1, wherein the circularly polarized antenna (1) is connected to the power divider (2) by a radio frequency connection line.
  4. 4. The circularly polarized multi-port multifunctional receiving device according to claim 2, wherein the radio frequency circuits of the bluetooth module and the Wi-Fi module (5) are integrated on the corresponding chips, the radio frequency circuits comprise a power amplifier (12), a low noise amplifier (18), a filter (17) and an electrostatic protection (16), and the chips are further integrated with a bluetooth antenna interface (15) and an analog-to-digital conversion (14).
  5. 5. A circularly polarized multiport multifunction receiver according to claim 1, wherein the circularly polarized antenna (1) is fed by a coaxial line, and the feeding point is located at the axis of the circularly polarized antenna (1).
  6. 6. The circularly polarized multiport multifunctional receiving device according to claim 1, wherein the radio frequency communication module is connected with the main control module (7) through the serial interface (6).
  7. 7. A circularly polarized multi-port receiver as set forth in claim 1, wherein, The chip of the main control module (7) is a Cortex-M series chip.
  8. 8. A circularly polarized multi-port receiver as set forth in claim 1, wherein, The circular polarized antenna (1) is any one of a low-profile omni-directional circular polarized antenna, a radial mode circular polarized spiral antenna, an axial mode circular polarized spiral antenna and a circular polarized microstrip antenna.
  9. 9. A circularly polarized multi-port receiver as set forth in claim 1, wherein, The charging device further comprises a built-in rechargeable battery (11), a USB-TypeC interface (9) and an Ethernet interface (10), wherein the rechargeable battery (11) is charged through the USB-TypeC interface (9) or the Ethernet interface (10), and in the charging process, wired data transmission is carried out between the rechargeable battery and external equipment through the USB-TypeC interface (9) or the Ethernet interface (10).
  10. 10. A circularly polarized multi-port receiver as set forth in claim 9, wherein, The mobile communication system also comprises a mobile communication module (8) which is directly connected with the rechargeable battery (11), is powered by the rechargeable battery (11) and is used for realizing wireless data transmission with a remote server.

Description

Circular polarization multiport multifunctional receiving device Technical Field The utility model relates to microwave antennas, feed networks, embedded system development and ground-air wireless communication technologies, in particular to a circularly polarized multiport multifunctional receiving device and application of the device in the unmanned aerial vehicle remote identification field. Background With the development of unmanned aerial vehicle technology, the demand for wireless communication between unmanned aerial vehicles and ground stations is also increasing. The common wireless local area network technology for unmanned aerial vehicle wireless communication generally supports 2.4GHz frequency band operation, and is low in cost. In order to achieve efficient wireless transmission, a large number of signal transmitting and receiving devices, i.e., antennas, are often required to be provided at the ground receiving base station. With the development of unmanned aerial vehicle technology and the popularization and popularization of unmanned flying, the monitoring requirement of unmanned aerial vehicles is continuously enhanced due to the consideration of airspace safety, public safety and aviation safety. In this context, unmanned aircraft remote identification technology based on the concept of air-ground coordination emerges and becomes a public standard. Unmanned aerial vehicle remote identification is based on wireless local area network broadcasting technology, and 2.4GHz (2400 MHz ~2483.5 MHz) frequency band work is usually supported. To achieve wide unmanned aircraft surveillance coverage, the ground needs to deploy a large number of signal unmanned aircraft remote identification ground stations and set up receiving devices, i.e., antennas. However, the installation space of the radio receiving device is often at a premium, and a large number of transceiver antennas, i.e. their associated radio frequency circuits, not only occupy limited space, but also increase the manufacturing costs of the receiving station. In pursuit of longer communication distances, remote identification ground stations typically use high gain antennas, which take up large space, are difficult to transport, install and maintain, and increase the manufacturing and operating costs of the ground station. In addition, mutual interference is caused between the receiving and transmitting antennas which are close to each other due to mutual coupling of electromagnetic waves. On the other hand, due to the variability of the attitude of the aircraft in the air, the polarization characteristics of the receiving and transmitting antenna relative to the ground are also changed continuously, so that two antennas with vertical polarization are required to be arranged to ensure the stability and continuity of wireless communication, the waste of space resources is greatly increased, the occupation of the space resources is multiplied, and the deployment range and application scenes of the ground station for operation identification, such as dense urban areas and mobile monitoring scenes, are restricted. Existing unmanned aircraft monitoring technologies, including but not limited to radar technology, photoelectric technology, spectrum analysis and analysis technology, and the like, cannot be used as wide-area airspace coverage technologies due to various limitations in terms of performance, cost, deployment difficulty, health safety and the like. Disclosure of utility model The utility model provides a circularly polarized multi-port multifunctional receiving device for receiving 2.4GHz (2400 MHz-2483.5 MHz) wireless signals, which is used for remotely identifying unmanned aerial vehicles and aims to solve the problem that antennas facing a wireless communication system are numerous, namely a feed network is complex, and simultaneously meet the requirement of wide area deployment. In order to achieve the above purpose, the technical scheme of the utility model is as follows: The circularly polarized multiport multifunctional transceiver comprises a circularly polarized antenna, a power divider, a wireless radio frequency communication module and a main control module which are electrically connected in sequence, wherein the wireless radio frequency communication module comprises a Bluetooth module and a Wi-Fi module, the working frequency band of the circularly polarized antenna is 2.4GHz-2.5GHz, and the working frequency band covers Bluetooth and Wi-Fi communication frequency bands. In some preferred embodiments, the bluetooth module includes one or more of a classical BT bluetooth module, a BLE bluetooth module and a dual-mode bluetooth module, where the bluetooth module and the Wi-Fi module are integrated with a chip, a radio frequency circuit and a radio frequency switch, the output ends of the power divider are respectively connected to the input ends of the radio frequency switches of the modules through radio frequency conn