Broadband slot antenna
A technology of slot antenna and slot, which is applied in the direction of slot antenna, radiating element structure, circuit, etc., can solve the problems of unsatisfactory multi-communication, small area occupied by the antenna, narrow working frequency band, etc., and achieve the expansion of working bandwidth and simple structural design , small size effect
Active Publication Date: 2015-03-11
SOUTH CHINA UNIV OF TECH
View PDF7 Cites 5 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
figure 2 Shown is the structure of a slot antenna proposed by the patent. The slot antenna proposed by the patent is mainly composed of a strip-shaped feed unit, a ground, and an antenna element (formed by connecting two sub-slots formed on the ground of the substrate) Its main advantage is that the area occupied by the antenna is small, but the working frequency band is narrow, which cannot meet the requirements of multi-communication standards.
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
[0037] The vertical section view and structural schematic diagram of a width slot antenna proposed in this embodiment are as follows image 3 and Figure 4 As shown, the broadband slot antenna is integrally fabricated on a double-sided copper-clad dielectric substrate, and can be easily fabricated using techniques such as mechanical engraving, laser engraving, and circuit board corrosion. The core content of the width slot antenna disclosed in this embodiment is to design a broadband antenna with superior performance by using the step impedance slot and the half wavelength slot.
[0038] A wide slot antenna disclosed in this embodiment is fabricated on a polytetrafluoroethylene double-sided copper-clad microstrip board with a dielectric constant of 4.2 and a thickness of 1.5mm in the form of a printed circuit board. image 3 and Figure 4 As shown, the slot antenna disclosed in this embodiment has a frequency bandwidth ranging from 1.5 GHz to 4.8 GHz in the range of 10 dB re...
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 discloses a broadband slot antenna. The antenna comprises a plate-shaped dielectric substrate, a strip-shaped feed element, a base and an antenna radiating element. The strip-shaped feed element is formed by metal foil of the upper surface of the substrate, the base is formed by metal foil of the lower surface of the substrate, and the antenna radiating element is formed by slotting in the base. The antenna radiating element comprises an invented-C-shaped slot and at least one first vertical sub slot positioned inside the invented-C-shaped slot. The 10dB broadband slot antenna with superior performance and with return loss ranging from 1.5GHz to 4.8GHz is designed by means of the phase step impedance sub slots and the half-wavelength slot, five resonance modes can be generated to broaden operation bandwidth of the antenna, and thus, the broadband slot antenna is applicable to the fields of broadband communication and multi-system communication.
Description
technical field [0001] The invention relates to the technical field of antennas for wireless mobile communications, in particular to a broadband slot antenna. Background technique [0002] In recent years, with the rapid development of wireless communication technology, people's demand for wireless communication services is increasing day by day. Many wireless terminals, such as mobile phones, tablet computers, etc., are designed to be compatible with many different communication standards, such as 2G, 3G, 4G , Wifi, etc. Therefore, the antenna responsible for radiating and receiving signals requires the ability to work in multi-band or broadband. The current research on multi-band is relatively mature, but there is still a lot of room for development in broadband. [0003] Slot antennas, the more common ones are waveguide slot antennas and microstrip slot antennas. Microstrip slot antennas are often used in smart mobile terminals due to their coplanar structure, small size,...
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 IPC IPC(8): H01Q1/38H01Q13/10
Inventor 陈付昌胡豪涛邱捷铭涂治红褚庆昕
Owner SOUTH CHINA UNIV OF TECH