Publication detail

Design of Circularly Polarized Terahertz Antenna with Interdigital Electrode Photomixer

PÍTRA, K. RAIDA, Z. HARTNAGEL, H.

Original Title

Design of Circularly Polarized Terahertz Antenna with Interdigital Electrode Photomixer

English Title

Design of Circularly Polarized Terahertz Antenna with Interdigital Electrode Photomixer

Type

conference paper

Language

en

Original Abstract

In the paper, we present the design of a circularly polarized antenna operating at 1 THz. The antenna is intended to be used for security applications where the object does not require a specific orientation for an optimal detection. In order to radiate high power, we integrated an LT GaAs photomixer with an interdigital electrode, choke filters and a dielectric lens into the antenna structure. Since a good impedance matching between the antenna and the photomixer is essential for radiating a high output power, we developed an equivalent model of the interdigital electrode and computed its capacitance to precisely design the matching circuit. The functionality of the designed structure was verified by simulations in CST Microwave Studio.

English abstract

In the paper, we present the design of a circularly polarized antenna operating at 1 THz. The antenna is intended to be used for security applications where the object does not require a specific orientation for an optimal detection. In order to radiate high power, we integrated an LT GaAs photomixer with an interdigital electrode, choke filters and a dielectric lens into the antenna structure. Since a good impedance matching between the antenna and the photomixer is essential for radiating a high output power, we developed an equivalent model of the interdigital electrode and computed its capacitance to precisely design the matching circuit. The functionality of the designed structure was verified by simulations in CST Microwave Studio.

Keywords

Terahertz antenna, circular polarization, interdigital-electrode GaAs photomixer.

RIV year

2013

Released

08.04.2013

Location

Gothenborg, Sweden

ISBN

978-88-907018-1-8

Book

Proceedings of the European Conference on Antennas and Propagation, EuCAP 2013

Pages from

2367

Pages to

2370

Pages count

4

BibTex


@inproceedings{BUT99635,
  author="Kamil {Pítra} and Zbyněk {Raida} and Hans Ludwig {Hartnagel}",
  title="Design of Circularly Polarized Terahertz Antenna with Interdigital Electrode Photomixer",
  annote="In the paper, we present the design of a circularly polarized antenna operating at 1 THz. The antenna is intended to be used for security applications where the object does not require a specific orientation for an optimal detection. In order to radiate high power, we integrated an LT GaAs photomixer with an interdigital electrode, choke filters and a dielectric lens into the antenna structure. Since a good impedance matching between
the antenna and the photomixer is essential for radiating a high output power, we developed an equivalent model of the interdigital electrode and computed its capacitance to precisely design the matching circuit. The functionality of the designed structure was verified by simulations in CST Microwave Studio.",
  booktitle="Proceedings of the European Conference on Antennas and Propagation, EuCAP 2013",
  chapter="99635",
  howpublished="electronic, physical medium",
  year="2013",
  month="april",
  pages="2367--2370",
  type="conference paper"
}