Built-in active digital mobile television antenna
A mobile TV, built-in technology, applied in the direction of electric short antenna, antenna, circuit, etc., can solve the problem that the antenna is not suitable for built-in, and achieve the effect of long service life, convenient use and excellent performance
Inactive Publication Date: 2011-06-29
HUIZHOU SPEED WIRELESS TECH CO LTD
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
On the one hand, compared with the built-in antennas of high-frequency bands such as GSM, the size of the antenna is obviously larger, but the antenna with a larger size is not suitable for built-in mobile communication terminal equipment; on the other hand, the frequency band of the antenna is required to be wider, generally It is difficult for the built-in antenna to meet such a large bandwidth requirement
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
[0017] In order to facilitate the understanding of those skilled in the art, the present invention will be described in further detail below in conjunction with the accompanying drawings:
[0018] The active digital mobile TV antenna of the present invention adopts a multi-layer PCB substrate. Radiation units are respectively arranged on each layer of the multi-layer PCB substrate 1, and the electrical connection is realized through metallized through holes between the radiation units; The upper layer is provided with an active circuit unit, which includes an antenna matching circuit and a low noise amplifier circuit, which are also electrically connected to the radiation unit through metallized through holes.
[0019] Such as figure 1 , 2 It is a structural schematic diagram of a specific embodiment of the present invention. In the embodiment, the antenna rationally optimizes the shape and size of the radiating elements 2, 7, and 8 on the three-layer PCB, and connects the r...
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 relates to the technical field of mobile device antennae. The invention provides a digital mobile television antenna, comprising a multi-layer PCB (printed circuit board) substrate as well as a radiating unit and an active circuit unit which are arranged on the substrate, wherein the radiating unit comprises a plurality of metal radiating unit layers which are respectively arranged on different layers of the PCB substrate, at least one metal radiating unit layer and the active circuit unit are arranged in the same layer of the PCB substrate, and the metal radiating unit layers are respectively electrically connected by virtue of metalized through holes; and the active circuit unit comprises an antenna matching circuit and a low noise amplifier circuit and is electrically connected with any radiating unit by virtue of the metalized through hole. The antenna adopts a multi-layer PCB structure, the size of the antenna is small, the antenna is convenient to be integrated and built in, and the antenna is applicable to other common mobile communication terminal equipment; and compared with an external telescopic antenna, the service life of the antenna provided by the invention is long, and the antenna provided by the invention is convenient to use.
Description
technical field [0001] The invention relates to the technical field of mobile equipment antennas, in particular to a built-in active digital mobile TV antenna. Background technique [0002] Driven by the national "triple play" policy, domestic digital mobile TV will develop rapidly. According to China Broadcasting, the target number of CMMB mobile TV users in 2010 is 10 million, and the number of end users is expected to exceed 50 million in the next three years. As far as the coverage of the CMMB digital mobile TV network is concerned, the signal has been opened in 253 cities across the country, and it has been fully operational since January 28, 2010. After more than two years of network construction and market warm-up, CMMB mobile digital TV has become increasingly mature in terms of technology, content, service and business operation mode, which has greatly protected the interests of upstream and downstream manufacturers in the entire industry chain. Emerging Markets. ...
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): H01Q23/00H01Q1/36H01Q1/38
CPCH01Q9/0414H01Q1/38H01Q1/40
Inventor 俞斌吴荻朱明范炼
Owner HUIZHOU SPEED WIRELESS TECH CO LTD