Performance Amelioration of an Active Integrated Spiral Antenna System for UWB Applications

Author

Jalali, M. ; Abdipour, A. ; Tavakoli, A. ; Moradi, G.

Author_Institution

Dept. of Electr. Eng., Amirkabir Univ. of Technol., Tehran

fYear

2007

fDate

21-23 March 2007

Firstpage

323

Lastpage

326

Abstract

This paper describes the implementation of an active integrated spiral antenna for UWB (ultra-wideband) applications. By integrating a low-noise amplifier with antenna, the voltage standing wave ratio (VSWR) can be kept low for a large bandwidth and this antenna indicate a 13 dB improvement in gain compared with one using a passive antenna with the same design, resulting in an improved spiral antenna performance for UWB. For the designed circuit in the UWB frequency range (3.1-10.6 GHz), the gain of the LNA is better than 13 dB, its noise figure is less than 3 dB, S₁₁ and S₂₂ are less than -13 dB, respectively

Keywords

active antennas; low noise amplifiers; microwave antennas; spiral antennas; ultra wideband antennas; ultra wideband communication; 13 dB; 3.1 to 10.6 GHz; LNA; UWB applications; VSWR; active integrated spiral antenna system; low-noise amplifier; noise figure; voltage standing wave ratio; Bandwidth; Circuits; Frequency; Low-noise amplifiers; Noise figure; Performance gain; Spirals; Ultra wideband antennas; Ultra wideband technology; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Antenna Technology: Small and Smart Antennas Metamaterials and Applications, 2007. IWAT '07. International Workshop on

Conference_Location

Cambridge

Print_ISBN

1-4244-1088-6

Electronic_ISBN

1-4244-1088-6

Type

conf

DOI

10.1109/IWAT.2007.370140

Filename

4227456