Title:
MICROSTRIP ANTENNA AND INFORMATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/100307
Kind Code:
A1
Abstract:
A microstrip antenna according to one embodiment of the present disclosure is configured so that, in a square resonator provided with a first side and a second side that are parallel to a first direction and have a length corresponding to a 3/2 wavelength, and a third side and a fourth side that are parallel to a second direction orthogonal to the first direction: the square resonator has a notched shape from each of the first and second sides toward the center of the square resonator, and due to the notched shape, has a shape causing a second portion and a third portion to contribute to radiation characteristics, the second portion and third portion being in such a positional relationship as to face a first portion that serves as the peripheral side of the notched shape; the first-direction lengths of the first portion, the second portion, and the third portion each correspond to a 1/2 wavelength; the second-direction width of the first portion is less than the second-direction width of the second portion and the third portion due to the notched shape; and a power supply point is provided to the second portion or the third portion.
Inventors:
FURUKAWA MINORU (JP)
MA ZHEWANG (JP)
MA ZHEWANG (JP)
Application Number:
PCT/JP2020/035353
Publication Date:
May 27, 2021
Filing Date:
September 17, 2020
Export Citation:
Assignee:
SPACE POWER TECH INC (JP)
NATIONAL UNIV CORPORATION SAITAMA UNIV (JP)
NATIONAL UNIV CORPORATION SAITAMA UNIV (JP)
International Classes:
H01Q13/08
Domestic Patent References:
| WO2008132785A1 | 2008-11-06 | |||
| WO2001045207A1 | 2001-06-21 |
Foreign References:
| JP2015159597A | 2015-09-03 | |||
| US6211825B1 | 2001-04-03 | |||
| JPH05129825A | 1993-05-25 | |||
| JP2000077929A | 2000-03-14 | |||
| JPS644101A | 1989-01-09 | |||
| JPH11251833A | 1999-09-17 | |||
| JPH08213831A | 1996-08-20 | |||
| JPH1168448A | 1999-03-09 | |||
| JP2003258539A | 2003-09-12 | |||
| JP2003283241A | 2003-10-03 |
Other References:
NUMATA, JUN ET AL.: "FDTD analysis of narrow band modified inverted F antennas", PROCEEDINGS OF THE 2011 IEICE COMMUNICATIONS SOCIETY CONFERENCE 1, 30 August 2011 (2011-08-30) - 16 September 2011 (2011-09-16), JP, pages 86, XP009530696
RICHARD E. HODGES: "A Deployable High-Ga in Antenna Bound for Mars: Developing a new folded-panel re flectarray for the first CubeSat mission to Mars", IEEE ANTENNAS AND PROPAGATION MAGAZI NE, 21 February 2017 (2017-02-21), Retrieved from the Internet
See also references of EP 4064455A4
RICHARD E. HODGES: "A Deployable High-Ga in Antenna Bound for Mars: Developing a new folded-panel re flectarray for the first CubeSat mission to Mars", IEEE ANTENNAS AND PROPAGATION MAGAZI NE, 21 February 2017 (2017-02-21), Retrieved from the Internet
See also references of EP 4064455A4
Attorney, Agent or Firm:
IPTECH PATENT PROFESSIONAL CORPORATION (JP)
Download PDF: