Small Wideband Monopole Antenna With a Distributed Inductive Strip for LTE/GSM/UMTS

Autor:	Gyeong-Ho Kim, Tae-Yeoul Yun
Rok vydání:	2015
Předmět:	Engineering Coaxial antenna business.industry Loop antenna law.invention Folded inverted conformal antenna Optics law Electronic engineering J-pole antenna Helical antenna Dipole antenna Antenna feed Electrical and Electronic Engineering business Monopole antenna
Zdroj:	IEEE Antennas and Wireless Propagation Letters. 14:1677-1680
ISSN:	1548-5757 1536-1225
DOI:	10.1109/lawp.2015.2417899
Popis:	We present a small, planar, and dual-wideband antenna for handheld devices, which consists of a driven spiral monopole and a distributed inductive strip designed. A dual-wideband characteristic is realized by using a coupling feed, a distributed inductor, and a folded strip, which excite multiple resonant modes to achieve wide impedance matching. The antenna size is reduced by spiraling of the monopole and meandering and folding of the distributed inductive strip, which occupies $20 \times 15~\hbox{mm}^{2}$ . The measured antenna gains and efficiencies are over 0.75 to 1.80 dBi and 60 to 82%, respectively. Radiation patterns are approximately omnidirectional in the x-y (H) planes for all bands: the LTE800, GSM850/900, GSM1800/1900, UMTS, and LTE2300/2500 bands.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::3885cb073e6f75f5f9fc787629ee3c52 https://doi.org/10.1109/lawp.2015.2417899 Zobrazit plný text záznamu