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Mobile terminal built-in antenna system and mobile terminal

A mobile terminal and built-in antenna technology, applied in the field of communication, can solve the problems of complex structure and large occupied space of the rod antenna, and achieve the effect of simple structure and low cost

Inactive Publication Date: 2012-11-14
SHENZHEN TINNO WIRELESS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The whip antenna has a complex structure and takes up a lot of space

Method used

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  • Mobile terminal built-in antenna system and mobile terminal
  • Mobile terminal built-in antenna system and mobile terminal
  • Mobile terminal built-in antenna system and mobile terminal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] like Figure 1 to Figure 7 As shown, the mobile terminal built-in antenna system of the present application, an embodiment thereof, includes an antenna, a matching circuit and a radio and television receiving chip, and the matching circuit is arranged between the antenna and the radio and television receiving chip for circuit matching. The antenna comprises a core wire and a helix 11 which surrounds the core wire. The helical wire 11 can be tightly attached to the core wire, so that the helical wire 11 can be wound and fixed on the core wire.

[0026] The core wire includes a metal inner core 12 and a cladding layer 13 . In a specific example, the core wire can use a wire with a diameter of 0.90 mm, the diameter of the metal inner core 12 is 0.54 mm, and the diameters of the core wire and the metal inner core 12 can also be changed as required. The helix 11 is a helical outer wire wound by an enameled wire or an electric wire, and the diameter of the helix 11 is 0.18 ...

Embodiment 2

[0032] like figure 2 As shown, the difference between Embodiment 2 and Embodiment 1 of the mobile terminal built-in antenna system of the present application is that an amplifier is also included. The amplifier is used in areas with poor coverage of radio and television signals. The amplifier can be a low-noise amplifier (Low-noise amplifier, LNA for short). One end of the amplifier is connected to the antenna through a matching circuit, and the other end is connected to the radio and television receiving chip.

[0033] The signal received by the antenna reaches the low-noise amplifier through the matching circuit, and is amplified by the low-noise amplifier and output to the radio and television signal receiving chip for demodulation and decoding, and sent to the baseband of the mobile phone, and the TV is played on the display screen.

[0034] The core wire at one end of the antenna is connected to the input end of the low noise amplifier through a matching circuit, and the...

Embodiment 3

[0036] like Figure 4 to Figure 7 As shown, the present application provides a mobile terminal, including a housing 20 and a built-in antenna system, the built-in antenna system is arranged in the housing 20, the built-in antenna system includes an antenna, a matching circuit and a radio and television receiving chip, and the matching circuit is arranged between the antenna and Between broadcast and TV receiving chips, it is used for circuit matching. The antenna comprises a core wire and a helix 11 which surrounds the core wire. The helical wire 11 can be tightly attached to the core wire, so that the helical wire 11 can be wound and fixed on the core wire.

[0037] The core wire includes a metal inner core 12 and a cladding layer 13 . In a specific example, the core wire can use a wire with a diameter of 0.90 mm, the diameter of the metal inner core 12 is 0.54 mm, and the diameters of the core wire and the metal inner core 12 can also be changed as required. The helical w...

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Abstract

The invention discloses a mobile terminal built-in antenna system which comprises an antenna and a matching circuit. The antenna comprises a core wire and a spiral wire which encircles the core wire, and the matching circuit is used for matching a circuit between the antenna and a broadcast television reception chip. The invention further discloses a mobile terminal. According to the mobile terminal built-in antenna system and the mobile terminal, the mobile terminal built-in antenna system comprises the antenna and the matching circuit which is connected with the broadcast television reception chip, the antenna comprises the core wire and the spiral wire which encircles the core wire, and the mobile terminal built-in antenna system can be arranged in a casing of the mobile terminal, so that the structure is simple, a built-in problem of a broadcast television antenna, particularly an analog television antenna, of the mobile terminal is solved, the cost is low, the implement is simple, and the mobile terminal built-in antenna system can be used in systems of the built-in analog television antenna, built-in digital television antenna and the like.

Description

technical field [0001] The present application relates to the communication field, and in particular to a mobile terminal built-in antenna system and a mobile terminal. Background technique [0002] The frequency range of analog TV broadcasting is from 48MHz to 860MHz (the frequency of digital TV broadcasting is from 470MHz to 860MHz), and the relative bandwidth is very wide; the wavelength is from 6.25 meters to 350mm. According to the design requirements of Hertz resonant antenna, the length of the antenna oscillator must reach at least four One-half wavelength, that is to say, the length of the antenna needs to be 1.6 meters to 87 mm. Handheld devices such as mobile phones are generally 100 mm long, 50 mm wide, and 10 mm thick. The space is very limited. In order to save space, almost all the antennas with built-in analog TVs in mobile terminals use rod antennas. The rod antennas used for analog TVs in mobile terminals are generally made of multi-section retractable ante...

Claims

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Application Information

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IPC IPC(8): H01Q1/36H01Q1/24H01Q23/00
Inventor 廖日平尤长原李志谋
Owner SHENZHEN TINNO WIRELESS TECH
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