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Constructing method of data card with multimedia broadcasting function and antenna thereof

A technology of multimedia broadcasting and data cards, applied in folding antennas, antenna supports/mounting devices, retractable units, etc., to achieve the effect of ensuring radio frequency performance

Active Publication Date: 2010-05-05
盐城新咏投资发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The structure of the data card is generally a rectangular structure. When the two ends of the rectangle are occupied, the built-in CMMB antenna can hardly guarantee the CMMB receiving sensitivity in a narrow layout.

Method used

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  • Constructing method of data card with multimedia broadcasting function and antenna thereof
  • Constructing method of data card with multimedia broadcasting function and antenna thereof
  • Constructing method of data card with multimedia broadcasting function and antenna thereof

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Embodiment Construction

[0028] The general idea of ​​the present invention is: design a rotating USB head at the front end of the data card which is in the shape of a cuboid as a whole, design the main antenna of the data card at the rear end, and design the CMMB rod antenna at the side of the rear end. The working frequency of the main antenna is generally 900MHz, and the receiving frequency range of CMMB (UHF band) is 470~798MHz. This design keeps the distance between the two antennas as far as possible and minimizes the interference; Usability, the rotating USB head is convenient for users to apply to various notebook computers; on the one hand, compared with the data card of the non-rotating USB head, the body length of the data card of the rotating USB head can be achieved with the body length of the non-rotating USB head Plus its USB length is quite. It is equivalent to elongating the length of the fuselage while the overall length remains unchanged, which is conducive to making the base of the...

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Abstract

A rotating USB joint is arranged at the front end of an integrally rectangular data card and a main antenna of the data card is arranged at the rear end, and the side surface of the rear end is provided with a CMMB pull rod antenna. The working frequency of the main antenna is usually 900MHz, and the receiving frequency of CMMB (UHF waveband) is 470-798MHz. For the design, the distance between the two antennae is long to the greatest extent, thus the interference is least. For the USB design, the usability of the USB joint is strengthened, and the rotating USB joint is conveniently applied to various notebook PCs for a user. With respect to a data card of a non-rotating USB joint, the length of the data card of the rotating USB joint can be equal to the sum of the length of the USB joint and the length of the non-rotating USB joint. Corresponding to the condition of unchangeable integral length, the length of the data card is extended, which is beneficial to prolonging the foundation of the CMMB pull rod antenna, thereby enabling the CMMB pull rod antenna to be longer when extended and the performance to be better; meanwhile, a customer can not think that the data card is too long when the USB joint is inserted into a slot during the non-work.

Description

technical field [0001] The present invention relates to the technical field of mobile wireless communication systems, and more specifically, to a data card with multimedia broadcasting function and an antenna construction method thereof. Background technique [0002] Multimedia broadcasting, especially China Mobile Multimedia Broadcasting (CMMB) technology, has been well received by consumers since it came out in 2006. CMMB was initially defined on handheld terminals with small screens below 7 inches, such as mobile TV, MP4, and PDA. With the widespread appearance of such terminals, CMMB technology is not limited to the application of the technology launch stage, and TV sticks and data cards are also gradually involved in CMMB technology. Because of this type of terminal, it is directly or indirectly connected to a computer such as a notebook. The low-frequency interference generated by the CPU, memory and other devices of the notebook computer will inevitably affect the r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/24H01Q1/10
Inventor 尹维梅刘文斌张奎
Owner 盐城新咏投资发展有限公司
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