Summary
International Symposium on Antennas and Propagation
2010
Session Number:4FC3
Session:
Number:4FC3-5
A Low Profile Double Finger Ring Antenna for BAN and PAN
Hiroki Goto, Hisao Iwasaki,
pp.-
Publication Date:2010/11/23
Online ISSN:2188-5079
Summary:
Body Area Network (BAN) or Personal Area Network (PAN) is emerging technology to realize a ubiquitous society. Easy and seamless but highly secured wireless communication network in such a society should be established. Therefore, many different types of the wearable antennas have been developed and reported.[1],[2] They should to be compact and flexible, and sometimes even washable. The wristwatch antenna for communicator was proposed to use as only an exciter of the humanbody.[3] However, in the future ubiquitous world, wristwatch might be too large and should be downsized such as a finger ring. The small and wearable antenna for applicable to finger ring size communicator was proposed.[4],[5] In [4], a modified gate-shape antenna and an inverted F antenna for applicable to finger ring size communicator were proposed for 2.5 GHz band. In [5], the circular antenna with finger ring was proposed. VSWR less than 2 was realized UWB band. However, the diameter of the circular antenna element was 22 mm. So, this antenna was too large for BAN. So, the small size finger ring antenna for UWB band (7.25GHz?10.25GHz) was proposed by authors.[6] The height of the proposed monopole antenna was 6mm. In this paper, we discuss the very low profile and wearable double finger ring antenna of UWB band (7.25GHz ? 10.25 GHz) for BAN. Details of the simulated results of the proposed antenna are presented. And it is confirmed that the human finger does not affect on the input impedance characteristic of the double finger ring antenna.