Analysis and design of active antenna arrays

Author

Liu, K. ; El-Ghazaly, S.M. ; Nair, V. ; Deshpande, M. ; El-Zein, N. ; Goronkin, H.

Author_Institution

Telecommun. Res. Center, Arizona State Univ., Tempe, AZ, USA

Volume

2

fYear

2001

fDate

20-24 May 2001

Firstpage

1383

Abstract

In this paper, the FDTD method is extended successfully to analyze active antennas using Z-transform method for small signal model and by a stable scheme for large signal model. The two approaches are validated by comparison with analytical impedance expression in frequency domain. Through these approaches, we analyze active antennas and antenna arrays containing tunnel diodes. Effects of various device parameters are investigated in order to find desired oscillations. Single and array active antennas are designed and tested. Experimental and simulated results are given and compared.

Keywords

Z transforms; active antenna arrays; antenna theory; finite difference time-domain analysis; frequency-domain analysis; microwave antenna arrays; FDTD method; Z-transform method; active antenna arrays; analytical impedance expression; device parameters; frequency domain; large signal model; small signal model; tunnel diodes; Antenna arrays; Circuit simulation; Diodes; Electromagnetic scattering; Equations; Finite difference methods; Impedance; Resistors; Time domain analysis; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 2001 IEEE MTT-S International

Conference_Location

Phoenix, AZ, USA

ISSN

0149-645X

Print_ISBN

0-7803-6538-0

Type

conf

DOI

10.1109/MWSYM.2001.967154

Filename

967154