Active antenna using parasitic elements

Author

Mori, K. ; Uchida, K. ; Arai, Hiroyuki

Author_Institution

Div. of Electr. & Comput. Eng., Yokohama Nat. Univ., Japan

Volume

3

fYear

1998

fDate

21-26 June 1998

Firstpage

1636

Abstract

This paper proposes a coplanar waveguide-fed active antenna with the parasitic elements of half-wavelength dipole placed above the oscillator to improve the frequency stability. The quality factor of this antenna is increased by the parasitic element, which is not obtained by the conventional active antenna that is connected directly to the oscillator. This paper describes experimental results of this active antenna´s characteristics, power combining, and self-oscillating mixer (Cha and Itoh 1995).

Keywords

UHF antennas; active antennas; antenna accessories; antenna feeds; antenna radiation patterns; coplanar waveguides; frequency stability; 1.55 GHz; 1.62 GHz; conventional active antenna; coplanar waveguide-fed active antenna; frequency stability; half-wavelength dipole; oscillator; parasitic element; parasitic elements; power combining; quality factor; self-oscillating mixer; Antenna arrays; Antenna radiation patterns; Coplanar waveguides; Dipole antennas; FETs; Frequency; Microwave antennas; Oscillators; Slot antennas; Stability;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 1998. IEEE

Conference_Location

Atlanta, GA, USA

Print_ISBN

0-7803-4478-2

Type

conf

DOI

10.1109/APS.1998.690869

Filename

690869