Antenna unit and communication device including same

An antenna unit and antenna technology, which is applied to antennas, resonant antennas, devices that make antennas work in different frequency bands at the same time, etc., can solve problems such as the reduction of the efficiency of the fed radiating electrode 22 and the non-feeding radiating electrode, and the reduction of the characteristics of the antenna 20. , to achieve the effect of improving the efficiency of the antenna

Inactive Publication Date: 2007-01-10
MURATA MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the dielectric substrate 21 is made small and low in section, the efficiency of the fed radiation electrode 22 and the non-fed radiation electrode decreases.
In this way, the characteristic of antenna 20 is reduced

Method used

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  • Antenna unit and communication device including same
  • Antenna unit and communication device including same
  • Antenna unit and communication device including same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings.

[0033] Figure 1A is a perspective view of the antenna unit 1 according to the first preferred embodiment of the present invention. Figure 1B is a diagrammatic component diagram of the antenna unit 1. figure 2 Shows Figure 1A and 1B Rear of antenna unit 1 shown.

[0034] The antenna unit 1 includes a chip-shaped antenna body 2 and a circuit substrate 3 for mounting the antenna body 2 thereon. image 3 It is a developed view of the antenna body 2 .

[0035] The antenna body 2 includes a dielectric substrate 4 and a fed radiation electrode 5 , a non-fed radiation electrode 6 , a fed electrode 7 and a ground electrode 8 disposed on the dielectric substrate 4 . In particular, the fed radiation electrode 5 and the non-fed radiation electrode 6 are arranged so as to be adjacent to each other at a predetermined distance on the upper surface of the dielectr...

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PUM

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Abstract

An antenna unit includes an antenna body having a fed radiation electrode and a non-fed radiation electrode that generate a double resonance state and that are mounted on a dielectric substrate, and a substrate for mounting the antenna body thereon. A ground electrode is disposed on the substrate in a predetermined area other than a ground-electrodeless portion provided on the substrate. The ground-electrodeless portion extends from at least one portion of an antenna-body mounting area so as to extend off of and away from the antenna-body mounting area. Grounding ends of the fed radiation electrode and the non-fed radiation electrode are connected to the ground electrode via grounding lines disposed on a predetermined portion of the ground-electrodeless portion, the predetermined portion being outside the antenna-body mounting area.

Description

(1) Technical field [0001] The present invention relates to an antenna unit usable in a communication terminal or other suitable device, and also to a communication device comprising such an antenna unit. (2) Background technology [0002] Fig. 12 is a diagrammatic perspective view of an antenna 20 provided within a communication device. This antenna 20 has a dielectric substrate 21, a feeding radiation electrode 22 and a non-feeding radiation electrode 23 mounted on the dielectric substrate 21, located on a predetermined side surface of the dielectric substrate 21 and feeding a signal to the feeding radiation electrode 22 The feeding electrodes (not shown), and the antenna ground terminals (not shown) disposed on the entire lower surface of the dielectric substrate 21 . [0003] The feeding radiation electrode 22 has both ends. One of both ends is a ground terminal 22a, and the other end is a feed terminal, to which a signal emitted from the feed electrode is fed. The no...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): H01Q13/08H01Q1/24H01Q1/38H01Q5/00H01Q9/04
CPCH01Q1/38H01Q5/0062H01Q5/378H01Q9/0457H01Q13/08
Inventor石原尚南云正二川端一也
OwnerMURATA MFG CO LTD