Joel A. Castillo
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Research Interests
Joel A. Castillo has a total of 7 co-authors. Here are the top co-authors by number of shared publications:
- Jorge Flores-Troncoso
Engineering and Applied Technology, Autonomous University of Zacatecas, Zacatecas 98000, Mexico
2 shared publications - Jorge Simón
Faculty of Sciences, Autonomous University of San Luis Potosi, San Luis Potosí 78295, Mexico
2 shared publications - José Luis Álvarez-Flores
Faculty of Mechanical and Electrical Engineering, University of Colima, Colima 28400, Mexico
2 shared publications - Leonel Soriano-Equigua
Faculty of Mechanical and Electrical Engineering, University of Colima, Colima 28400, Mexico
1 shared publication - Ramon Parra-Michel
Department of Electrical Engineering, Communications Section, CINVESTAV-IPN, Guadalajara, Jalisco 45019, Mexico
1 shared publication - Rigoberto Jáuregui
Mexican Navy Institute for the Research and Development, Mexican Navy, Veracruz 95269, Mexico
1 shared publication
Latest Publications
- Open Access
- 4 January 2022
- Published by MDPI AG in Electronics
- Vol. 11 (1) , 149
Modeling and Fabrication of a Reconfigurable RF Output Stage for Nanosatellite Communication Subsystems
Current small satellite platforms such as CubeSats require robust and versatile communication subsystems that allow the reconfiguration of the critical operating parameters such as carrier frequency, transmission power, bandwidth, or filter roll-off factor. A reconfigurable Analog Back-End for the space segment of a satellite communication subsystem is presented in this work. This prototype is implemented on a 9.5 cm2 6-layer PCB, and it operates from 0.070 to 6 GHz and complies with CubeSat and IPC-2221 standards. The processing, control, and synchronizing stages are carried out on a Software-Defined Radio approach executed on a baseband processor. Results showed that the signal power at the output of the proposed Analog Back-End is suitable for feeding the following antenna subsystem. Furthermore, the emitted radiation levels by the transmission lines do not generate electromagnetic interference.
- 4 January 2022
- Published by MDPI AG in Electronics
- Vol. 11 (1) , 149
Open AccessModeling and Fabrication of a Reconfigurable RF Output Stage for Nanosatellite Communication Subsystems
Current small satellite platforms such as CubeSats require robust and versatile communication subsystems that allow the reconfiguration of the critical operating parameters such as carrier frequency, transmission power, bandwidth, or filter roll-off factor. A reconfigurable Analog Back-End for the space segment of a satellite communication subsystem is presented in this work. This prototype is implemented on a 9.5 cm2 6-layer PCB, and it operates from 0.070 to 6 GHz and complies with CubeSat and IPC-2221 standards. The processing, control, and synchronizing stages are carried out on a Software-Defined Radio approach executed on a baseband processor. Results showed that the signal power at the output of the proposed Analog Back-End is suitable for feeding the following antenna subsystem. Furthermore, the emitted radiation levels by the transmission lines do not generate electromagnetic interference.
- Open Access
- 7 July 2021
- Published by MDPI AG in Electronics
- Vol. 10 (14) , 1627
Signal Conditioning Stage in S-Band Communication Subsystem for CubeSat Applications
This work presents the design, performance evaluation, manufacture, and characterization of an RF front-end signal conditioning chain on a substrate that achieves the best performance at S-band frequencies and complies with the dimensions of the international standard for CubeSat-type nanosatellites. In this development, the signal conditioning chains were carried out on the high-frequency substrates RO4350B, CuClad 250, and RT/duroid 5880, considering scattering parameters in a small-signal regime. Concerning the power output, after the filtering and amplifying stages, the conditioning chain delivered 2 watts at 2.25 GHz. Moreover, up to 40 dB gain was achieved, and a good impedance matching at −20 dB for both input and output ports was observed. The numerical simulations and experimental results showed that an RO4350B substrate allows the smallest design dimensions, and these comply with the dimensions of the CubeSat standard. The manufactured RF front-end signal conditioning chain on RO4350B requires an area of 95 mm2, and it is ready to be used in a proof-of-concept space mission in a CubeSat.
- 7 July 2021
- Published by MDPI AG in Electronics
- Vol. 10 (14) , 1627
Open AccessSignal Conditioning Stage in S-Band Communication Subsystem for CubeSat Applications
This work presents the design, performance evaluation, manufacture, and characterization of an RF front-end signal conditioning chain on a substrate that achieves the best performance at S-band frequencies and complies with the dimensions of the international standard for CubeSat-type nanosatellites. In this development, the signal conditioning chains were carried out on the high-frequency substrates RO4350B, CuClad 250, and RT/duroid 5880, considering scattering parameters in a small-signal regime. Concerning the power output, after the filtering and amplifying stages, the conditioning chain delivered 2 watts at 2.25 GHz. Moreover, up to 40 dB gain was achieved, and a good impedance matching at −20 dB for both input and output ports was observed. The numerical simulations and experimental results showed that an RO4350B substrate allows the smallest design dimensions, and these comply with the dimensions of the CubeSat standard. The manufactured RF front-end signal conditioning chain on RO4350B requires an area of 95 mm2, and it is ready to be used in a proof-of-concept space mission in a CubeSat.