Title:
多帯域円偏波アンテナ
Document Type and Number:
Japanese Patent JP7023961
Kind Code:
B2
Abstract:
The present invention provides a circularly polarised, CP, antenna device for multiband GNSS. It comprises a spiral antenna and a high impedance surface, HIS, comprising a conductive layer comprising a first region and a separate second region, and a ground plane. The first region of the conductive layer is provided with at least one resonant element of a first resonant frequency and the second region of the conductive layer is provided with at least one resonant element of a second resonant frequency.
Inventors:
Steven Christie
Denver Humphrey
Denver Humphrey
Application Number:
JP2019532189A
Publication Date:
February 22, 2022
Filing Date:
August 29, 2017
Export Citation:
Assignee:
ARRALIS HOLDINGS LIMITED
International Classes:
H01Q15/14; H01P5/10; H01Q9/27; H01Q21/06
Domestic Patent References:
| JP5075331A | ||||
| JP1502313A | ||||
| JP11163622A | ||||
| JP58134511A | ||||
| JP2005079794A |
Foreign References:
| US20090174623 | ||||
| US20130249762 | ||||
| CN104836033A |
Attorney, Agent or Firm:
Koji Murai
Go Nishio
Go Nishio