A Second-Iteration Square Koch Fractal Slot Antenna for UHF Downlink Telemetry Applications in CubeSat Small Satellites
This article presents the design, fabrication, and measurement of a square Koch fractal slot antenna for UHF band using both the FR4-G10 and Cuclad 250 substrates. Conveniently, this 56.56 cm full-length antenna possesses a geometry that allows it to be incorporated into the standardized 10 cm × 10 ...
Saved in:
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2020-01-01
|
| Series: | International Journal of Antennas and Propagation |
| Online Access: | http://dx.doi.org/10.1155/2020/9672959 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832560126552178688 |
|---|---|
| author | Jorge Simon Jorge Flores-Troncoso Jose Luis Alvarez-Flores Leonel Soriano-Equigua Marco Cardenas-Juarez Armando Arce Edgar Briones Jorge Sosa-Pedroza |
| author_facet | Jorge Simon Jorge Flores-Troncoso Jose Luis Alvarez-Flores Leonel Soriano-Equigua Marco Cardenas-Juarez Armando Arce Edgar Briones Jorge Sosa-Pedroza |
| author_sort | Jorge Simon |
| collection | DOAJ |
| description | This article presents the design, fabrication, and measurement of a square Koch fractal slot antenna for UHF band using both the FR4-G10 and Cuclad 250 substrates. Conveniently, this 56.56 cm full-length antenna possesses a geometry that allows it to be incorporated into the standardized 10 cm × 10 cm faces of the CubeSats. Furthermore, it is shown that both selected substrates exhibit an acceptable performance at the frequency of interest despite the economic cost difference and relative permittivity. Hence, the commercial FR4-G10 antenna substrate can be preferred because of its low-cost and admissible performance at 458 MHz, which is a frequency in the UHF band that is commonly used for telemetry, tracking, and command downlinks of CubeSats. Measurements show that the proposed antenna exhibits a reflection coefficient of −16.53 dB, a bandwidth of 22.62 MHz at −10 dB, a VSWR of 1.3508, a normalized impedance of 0.794 − j0.173 at 50 Ω, and a directivity of 2.24 dBi. The contribution of this work consists in the use of a fractal geometry to construct a low-cost slot antenna working at UHF frequencies over the limited area of the CubeSat faces and in order to optimize the area for an eventual coexistence with solar cells. |
| format | Article |
| id | doaj-art-99c3022afcbc419aa2412882f8b2f7fb |
| institution | Kabale University |
| issn | 1687-5869 1687-5877 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Antennas and Propagation |
| spelling | doaj-art-99c3022afcbc419aa2412882f8b2f7fb2025-02-03T01:28:25ZengWileyInternational Journal of Antennas and Propagation1687-58691687-58772020-01-01202010.1155/2020/96729599672959A Second-Iteration Square Koch Fractal Slot Antenna for UHF Downlink Telemetry Applications in CubeSat Small SatellitesJorge Simon0Jorge Flores-Troncoso1Jose Luis Alvarez-Flores2Leonel Soriano-Equigua3Marco Cardenas-Juarez4Armando Arce5Edgar Briones6Jorge Sosa-Pedroza7Cátedras CONACYT, Unidad Académica de Ingeniería Eléctrica, Universidad Autónoma de Zacatecas, Zacatecas, MexicoUnidad Académica de Ingeniería Eléctrica, Universidad Autónoma de Zacatecas, Zacatecas, MexicoFacultad de Ingeniería Mecánica y Eléctrica, Universidad de Colima, Colima, MexicoFacultad de Ingeniería Mecánica y Eléctrica, Universidad de Colima, Colima, MexicoFacultad de Ciencias, Universidad Autónoma de San Luis Potosí, San Luis Potosí, MexicoCátedras CONACYT, Facultad de Ciencias, Universidad Autónoma de San Luis Potosí, San Luis Potosí, MexicoInstituto Tecnológico de Estudios Superiores de Occidente, Tlaquepaque, MexicoEscuela Superior de Ingeniería Mecánica y Eléctrica, Instituto Politécnico Nacional, Mexico City, MexicoThis article presents the design, fabrication, and measurement of a square Koch fractal slot antenna for UHF band using both the FR4-G10 and Cuclad 250 substrates. Conveniently, this 56.56 cm full-length antenna possesses a geometry that allows it to be incorporated into the standardized 10 cm × 10 cm faces of the CubeSats. Furthermore, it is shown that both selected substrates exhibit an acceptable performance at the frequency of interest despite the economic cost difference and relative permittivity. Hence, the commercial FR4-G10 antenna substrate can be preferred because of its low-cost and admissible performance at 458 MHz, which is a frequency in the UHF band that is commonly used for telemetry, tracking, and command downlinks of CubeSats. Measurements show that the proposed antenna exhibits a reflection coefficient of −16.53 dB, a bandwidth of 22.62 MHz at −10 dB, a VSWR of 1.3508, a normalized impedance of 0.794 − j0.173 at 50 Ω, and a directivity of 2.24 dBi. The contribution of this work consists in the use of a fractal geometry to construct a low-cost slot antenna working at UHF frequencies over the limited area of the CubeSat faces and in order to optimize the area for an eventual coexistence with solar cells.http://dx.doi.org/10.1155/2020/9672959 |
| spellingShingle | Jorge Simon Jorge Flores-Troncoso Jose Luis Alvarez-Flores Leonel Soriano-Equigua Marco Cardenas-Juarez Armando Arce Edgar Briones Jorge Sosa-Pedroza A Second-Iteration Square Koch Fractal Slot Antenna for UHF Downlink Telemetry Applications in CubeSat Small Satellites International Journal of Antennas and Propagation |
| title | A Second-Iteration Square Koch Fractal Slot Antenna for UHF Downlink Telemetry Applications in CubeSat Small Satellites |
| title_full | A Second-Iteration Square Koch Fractal Slot Antenna for UHF Downlink Telemetry Applications in CubeSat Small Satellites |
| title_fullStr | A Second-Iteration Square Koch Fractal Slot Antenna for UHF Downlink Telemetry Applications in CubeSat Small Satellites |
| title_full_unstemmed | A Second-Iteration Square Koch Fractal Slot Antenna for UHF Downlink Telemetry Applications in CubeSat Small Satellites |
| title_short | A Second-Iteration Square Koch Fractal Slot Antenna for UHF Downlink Telemetry Applications in CubeSat Small Satellites |
| title_sort | second iteration square koch fractal slot antenna for uhf downlink telemetry applications in cubesat small satellites |
| url | http://dx.doi.org/10.1155/2020/9672959 |
| work_keys_str_mv | AT jorgesimon aseconditerationsquarekochfractalslotantennaforuhfdownlinktelemetryapplicationsincubesatsmallsatellites AT jorgeflorestroncoso aseconditerationsquarekochfractalslotantennaforuhfdownlinktelemetryapplicationsincubesatsmallsatellites AT joseluisalvarezflores aseconditerationsquarekochfractalslotantennaforuhfdownlinktelemetryapplicationsincubesatsmallsatellites AT leonelsorianoequigua aseconditerationsquarekochfractalslotantennaforuhfdownlinktelemetryapplicationsincubesatsmallsatellites AT marcocardenasjuarez aseconditerationsquarekochfractalslotantennaforuhfdownlinktelemetryapplicationsincubesatsmallsatellites AT armandoarce aseconditerationsquarekochfractalslotantennaforuhfdownlinktelemetryapplicationsincubesatsmallsatellites AT edgarbriones aseconditerationsquarekochfractalslotantennaforuhfdownlinktelemetryapplicationsincubesatsmallsatellites AT jorgesosapedroza aseconditerationsquarekochfractalslotantennaforuhfdownlinktelemetryapplicationsincubesatsmallsatellites AT jorgesimon seconditerationsquarekochfractalslotantennaforuhfdownlinktelemetryapplicationsincubesatsmallsatellites AT jorgeflorestroncoso seconditerationsquarekochfractalslotantennaforuhfdownlinktelemetryapplicationsincubesatsmallsatellites AT joseluisalvarezflores seconditerationsquarekochfractalslotantennaforuhfdownlinktelemetryapplicationsincubesatsmallsatellites AT leonelsorianoequigua seconditerationsquarekochfractalslotantennaforuhfdownlinktelemetryapplicationsincubesatsmallsatellites AT marcocardenasjuarez seconditerationsquarekochfractalslotantennaforuhfdownlinktelemetryapplicationsincubesatsmallsatellites AT armandoarce seconditerationsquarekochfractalslotantennaforuhfdownlinktelemetryapplicationsincubesatsmallsatellites AT edgarbriones seconditerationsquarekochfractalslotantennaforuhfdownlinktelemetryapplicationsincubesatsmallsatellites AT jorgesosapedroza seconditerationsquarekochfractalslotantennaforuhfdownlinktelemetryapplicationsincubesatsmallsatellites |