Multimode multi-frequency combined antenna and GNSS receiver

A combined antenna, multi-mode and multi-frequency technology, applied in the field of receivers, can solve the problems of the host not working properly, high antenna design requirements, poor built-in antennas, etc., to achieve optimized design layout, good signal transmission quality, and increase physical distance Effect

CN109768369AActive Publication Date: 2019-05-17GUANGZHOU HI TARGET SURVEYING INSTRUMENT CO LTD
6 Cites 12 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2019-05-17

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The present invention relates to a multimode multi-frequency combined antenna and a GNSS receiver. The multimode multi-frequency combined antenna includes a first shielding cover, a GNSS radio frequency board, a GNSS antenna, a bracket, a network main antenna, a network diversity antenna, and two WIFI Bluetooth antennas. For the multimode multi-frequency combined antenna described above, an integrated design idea is used, an optimized design layout is reasonable, clearing of an antenna area is reasonable, network main antenna and diversity antenna are separated from each other, WIFI Bluetoothantennas are separated from each other and are diagonally placed, and a physical distance is increased. In this way, not only isolation is improved, but also phase center stability of the GNSS antennacan be ensured, and a phase error caused by geometric asymmetry of the GNSS antenna is reduced. In addition, a reasonable structural design can ensure effective reception and transmitting of satellite signals, network signals, and WIFI Bluetooth signals with high-precision. In addition, the network antenna is compatible with the main diversity antenna, and a signal received by the antenna in a position in which the spatial signal is stronger is fully utilized, a signal to noise ratio is higher, and signal transmission quality is better.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a receiver, in particular to a multi-mode and multi-frequency combination antenna and a GNSS receiver. Background technique

[0002] The commonly used measurement method for GNSS (Global Navigation Satellite System) receivers is real-time kinematic (RTK), which is a real-time dynamic positioning and measurement technology based on carrier phase observations. RTK technology provides real-time three-dimensional positioning results of station points in a specified coordinate system, and achieves millimeter-level accuracy. As the most mainstream satellite navigation technology measurement application product at present, GNSS receivers are increasingly widely used in modern surveying and mapping, transportation, public safety, rescue, modern agriculture and other fields.

[0003] Traditional GNSS receivers mostly use aluminum-magnesium alloy metal shells, which have high requirements for antenna design. 2G / 3G / 4G network antennas ar...

Examples

Embodiment Construction

[0024] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without departing from the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0025] In the description of the present invention, it should be understood that the terms "first" and "second" are used for description purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly indicating the quantity of indicated technical featu...