Unlock instant, AI-driven research and patent intelligence for your innovation.

Antenna system and electronic apparatus employing same

An antenna and antenna core technology, which is applied to antennas, helical antennas, antenna components, etc., and can solve problems such as narrowing of the frequency band

Inactive Publication Date: 2008-12-17
PANASONIC CORP
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the usable frequency band is narrowed

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Antenna system and electronic apparatus employing same
  • Antenna system and electronic apparatus employing same
  • Antenna system and electronic apparatus employing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] An object of the present invention is to ensure the size of the antenna and to obtain a wide band.

[0018] Embodiments of the present invention will be described.

[0019] FIG. 1 shows a circuit block diagram of a mobile phone equipped with the antenna of the present invention. In FIG. 1 , an antenna 1 is connected to an antenna duplexer 2 via a feeding terminal 25 . This antenna duplexer 2 is composed of a transmission filter 6 and a reception filter 5 . The feed terminal 25 is commonly connected to the input terminal of the reception filter 5 and the output terminal of the transmission filter 6 . An output terminal of the receive filter 5 is connected to an amplifier 7 , and an input terminal of the transmit filter 6 is connected to an isolator 18 . The radio waves are received by the antenna 1 and transmitted to the reception filter 5 of the antenna duplexer 2 as electric signals. An interstage filter 8 , a mixer 9 , an IF filter (intermediate frequency filter) ...

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

No PUM Login to View More

Abstract

The present invention provides a small and wide-band antenna, the antenna is installed inside, small and can be compatible with broadband electronic equipment, the antenna has a feed element having a feed end, and an antenna core with a feed element arranged on the outer periphery, A feeding line connected to the feeding end and a magnetic body covering the feeding end, the electronic device includes the antenna, a transmitting system and a receiving system, and the feeding line of the antenna is connected to at least one of the transmitting system and the receiving system.

Description

technical field [0001] The present invention relates to an antenna and electronic equipment using the antenna. Background technique [0002] Image 6 The structure of a conventional antenna is shown. A conventional antenna includes a feeding element 101 with one end open, an antenna core 100 provided with the feeding element 101 on its outer periphery, and a feeding line 102 connected to a feeding end of the feeding element 101 . The feeding element 101 is connected to the feeding unit on the printed circuit board through the feeding line 102 . In this structure, by adjusting the length of the feeding element 101, the resonance frequency in the λ / 4 mode resonance is adjusted, and radio waves are emitted from the resonance current. The λ / 4 mode resonance mentioned here is a resonance mode in which the current in the feeding unit of the feeding element 101 becomes the largest, and the open-circuit terminal current of the feeding element 101 farthest from the feeding unit is ...

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
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/36H01Q1/40H01Q1/12H01Q1/24H01Q5/00H01Q5/378H01Q7/06H01Q11/08
CPCH01Q1/1207H01Q1/243H01Q1/362H01Q7/06H01Q11/08H01Q5/378
Inventor 荣美砂子汤田直毅佐藤祐已犬冢敦
Owner PANASONIC CORP