PLANAR INVERTED F ANTENNA - SII MOBILE COMM INC

Title:

PLANAR INVERTED F ANTENNA

Document Type and Number:

WIPO Patent Application WO/2013/031518

Kind Code:

A1

Abstract:

Provided is a planar inverted F antenna to which a power supply line can be readily connected. Two slits are provided up to locations where input impedance is Z (= 50Ω), from the open end side of a main conductive plate that functions as an excitation conductive plate. Between these slits is used as a microstrip line (MSL) and the width (w) is determined such that the characteristic impedance for the transmission line is Z. A planar inverted F antenna having a U-shaped or L-shaped cross-section is formed by folding on both sides or on one side of the MSL, along the longitudinal direction of the MSL. In other words, a planar inverted F antenna is formed that has the excitation conductive plate and the MSL arranged separated by a prescribed distance, on the outside of a ground conductive plate bent into a U-shaped or L-shaped cross-section. The positional relationship between the connection position for the power supply pin and the radiation end can be changed, by folding the planar inverted F antenna along the longitudinal direction of the MSL.

Inventors:

HANEISHI MISAO (JP)
YONEI YOSHIYUKI (JP)
SOBU MASAHIRO (JP)
MATSUI AKINORI (JP)

Application Number:

PCT/JP2012/070455

Publication Date:

March 07, 2013

Filing Date:

August 10, 2012

Export Citation:

Click for automatic bibliography generation Help

Assignee:

SII MOBILE COMM INC (JP)
CHIKOUJI GAKUEN EDUCATIONAL FOUNDATION (JP)
HANEISHI MISAO (JP)
YONEI YOSHIYUKI (JP)
SOBU MASAHIRO (JP)
MATSUI AKINORI (JP)

International Classes:

H01Q5/10; H01Q13/08

Domestic Patent References:

WO2005020371A1

2005-03-03

Foreign References:

JPH07240696A	1995-09-12
JPH05299929A	1993-11-12
JP2000068736A	2000-03-03

Other References: