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High k materials used to manufacture miniaturised dielectric antennas for military applications

I. NICOLAESCU1,* , A. IOACHIM2, I. TOACSAN2, I. RADU1, G. BANCIU2

Affiliation

  1. Military Technical Academy, Bucharest, Romania
  2. National Institute for Materials Physics, Bucharest, Romania

Abstract

The microwaves are used for both civilian and military applications for communication and detection. Due to the emerging applications and the need for more bandwidth as well as for high speed there is a strong competition for ultra high frequencies devices. As it is know the size of different kind of microwave components is in a certain relation with the wavelength divided by root square of the dielectric permittivity. So the size of microwave component can be decreased by increasing the dielectric permittivity. Dielectric materials based on TiO2 are recommended for applications in electromagnetism and optics due to their nonlinear properties, to high value of the dielectric permittivity and their temperature behavior. The paper describes very shortly the technology applied to manufacture high dielectric permittivity materials based on TiO2 and microwave devices designed with this. In addition, the experimental data measured for a dielectric antenna are presented..

Keywords

High k dielectric materials, Dielectric resonator, Antennas.

Submitted at: June 25, 2007
Accepted at: Nov. 16, 2007

Citation

I. NICOLAESCU, A. IOACHIM, I. TOACSAN, I. RADU, G. BANCIU, High k materials used to manufacture miniaturised dielectric antennas for military applications, Journal of Optoelectronics and Advanced Materials Vol. 9, Iss. 11, pp. 3592-3597 (2007)