A Broadband Quasi-Yagi Antenna for Multi-band Wireless Communication System
A wireless communication system, quasi-Yagi technology, applied to antenna unit combinations with different polarization directions, resonant antennas, etc., can solve problems such as increasing equipment cost and system complexity, and achieve the effects of easy processing, low profile, and small size
Inactive Publication Date: 2016-08-17
XIDIAN UNIV
View PDF5 Cites 1 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] Antenna is the front end of receiving and transmitting equipment. With the rapid development of wireless communication technology, the requirements for it are getting higher and higher. Antennas are required to be highly integrated, low-profile, and meet the needs of multiple wireless communication systems in different frequency bands. Integration requirements, while the current general communication antennas only meet the communication in a single frequency band, in order to work in multiple frequency bands for the communication system, multiple antennas must be used in combination, which causes the complexity of the system and increases the cost of the equipment
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0024] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. The schematic embodiments and descriptions of the present invention are used to explain the present invention, but are not intended to limit the present invention.
[0025] Such as Figure 1.1 , Figure 1.2 , figure 2 As shown, a broadband quasi-Yagi antenna applied to a communication system integrating multiple frequency bands, including a dielectric substrate 1, a metal ground plate 2, an SMA connector 3, a metal symmetrical oscillator, a metal impedance gradient line 5, a metal guiding oscillator 6, Metal impedance matching stub 7. The metal ground plate 2 covers the dielectric substrate 1 and is connected with the metal impedance gradient line 5 . The SMA connector 3 is disposed on one side of the metal ground plate 2 and connected to the metal impedance gradient line 5 . Two pairs of metal symmetrical vibrators are respectively connected...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention provides a broadband quasi-Yagi antenna applied to a multi-band wireless communication system, including a dielectric substrate, a metal ground plate, an SMA joint, a metal symmetrical vibrator, a metal impedance gradient line, a metal guiding vibrator, and a metal impedance matching branch; a metal ground plate Covered on the dielectric substrate and connected to the metal impedance gradient line; the SMA connector is set on one side of the metal ground plate and connected to the metal impedance gradient line; the metal symmetric vibrator is two pairs; the two pairs of metal symmetric vibrators are respectively connected to the metal impedance gradient The wires are connected and covered on both sides of the dielectric substrate; the metal impedance matching branch is set between the metal grounding plate and the metal symmetrical vibrator, and the metal impedance matching branch is connected to the metal impedance gradient line; the metal guiding vibrator is set behind the metal symmetrical vibrator . The invention can be applied to the broadband quasi-Yagi antenna of the integrated multi-frequency communication system, the working bandwidth can cover all communication frequency bands within 1.7GHz-4.1GHz, and has good gain and pattern characteristics.
Description
technical field [0001] The invention relates to a broadband quasi-Yagi antenna applied to a multi-band wireless communication system. The working frequency band of the antenna is (1.7GHz~4.1GHz), and can be used for DCS wireless network, WLAN (wireless local area network), and LTE which is currently under continuous development. in the communication system. At the same time, the antenna also covers the WIMAX communication frequency band. Background technique [0002] DCS1800 (Digital cellular system) is a digital cellular system with a working frequency range of 1710MHz to 1880MHz. The development of my country's mobile communication is extremely rapid. On the one hand, due to the limitation of frequency resources, some areas have experienced frequency resource shortages, insufficient channels, and excessive traffic density; on the other hand, technologies such as multiple frequency reuse, multi-layer coverage, and frequency hopping To increase capacity, there are also many...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H01Q9/04H01Q21/24
Inventor 任学施王泽东路建民郑书峰尹应增
Owner XIDIAN UNIV