Casing and hand effect on PCB antenna in 2.4 GHz wireless mouse: A measurement based characterization

Author

Gowrish, B. ; Basu, Anirban

Author_Institution

Data Commun. Div., Cypress Semicond. Technol. India Pvt. Ltd., Bangalore, India

fYear

2014

fDate

26-29 July 2014

Firstpage

853

Lastpage

856

Abstract

In this paper, the effect of plastic casing and hand, on 2.4 GHz PCB antenna used in wireless mouse is investigated thoroughly from measurement. A systematic observation from measurement reveals two types of shift in the resonance of PCB antenna. The resonance shift caused by plastic casing is referred to as Static Shift, and is relatively easy to correct for. The resonance shift caused by hand is referred to as Dynamic Shift, and is detrimental for the performance of antenna in the final product. However, measurement concludes that, Dynamic Shift is significantly nullified for antenna placed around 4 mm away from edge of casing. This data when used effectively, while PCB floor planning is expected to improve the overall performance of the product, particularly for products used in dynamic environment like wireless mouse, presenter, keyboard.

Keywords

UHF radio propagation; antennas; mouse controllers (computers); plastic packaging; printed circuit layout; radio links; PCB antenna; PCB floor planning; casing effect; dynamic shift; frequency 2.4 GHz; hand effect; plastic casing; resonance shift; static shift; wireless mouse; Antenna measurements; Broadband antennas; Mice; Plastics; Wireless communication; PCB (Printed Circuit Board) antenna; dynamic shift; resonance shift; static shift;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation (APCAP), 2014 3rd Asia-Pacific Conference on

Conference_Location

Harbin

Print_ISBN

978-1-4799-4355-5

Type

conf

DOI

10.1109/APCAP.2014.6992633

Filename

6992633