T-matched dipole antenna integrated in electrically small body-worn wireless sensor node
2009 (English)In: IEE Proceedings - Microwaves Antennas and Propagation, ISSN 1350-2417, E-ISSN 1359-706X, Vol. 3, no 5, 774-781 p.Article in journal (Refereed) Published
A 2.4 GHz antenna for an electrically small body-worn sensor node is presented. Usually, unbalanced antennas are used in such applications. Implementing a balanced antenna in a small node deployed on the body is problematic from the points of view of both design and characterisation. A solution using a T-matched dipole integrated in the node housing is presented. Techniques for characterisation both in free space and on the body are described. Besides antenna port impedance and radiation efficiency, radiated power and radiation patterns of the active antenna fed by a transceiver in a fully functional sensor node are measured. The benefits and drawbacks of the chosen antenna design and characterisation techniques are discussed.
Place, publisher, year, edition, pages
2009. Vol. 3, no 5, 774-781 p.
Research subject Engineering Science with specialization in Microwave Technology
IdentifiersURN: urn:nbn:se:uu:diva-111198DOI: 10.1049/iet-map.2008.0218ISI: 000268003900008OAI: oai:DiVA.org:uu-111198DiVA: diva2:279777