TY - JOUR
T1 - Compact Leaky-Wave SIW Antenna with Broadside Radiation and Dual-Band Operation for CubeSats
AU - Kuznetcov, Maksim
AU - Podilchak, Symon K.
AU - Poveda-Garcia, Miguel
AU - Hilario Re, Pascual
AU - Alistarh, Cristian
AU - Goussetis, George
AU - Gómez-Tornero, José Luis
N1 - Funding Information:
This work was supported in part by Samsung under the GRO Grant Scheme; in part by the European Union?s Horizon 2020 Research and Innovation Programme under the Marie Sk?odowska Curie Project CSA-EU underGrant 709372; in part by the European Union?sHorizon ITN REVOLVE Project underGrant 722840; and by Spanish National Project PID2019-103982RB-C42/AEI/10.13039/501100011033.
Publisher Copyright:
© 2002-2011 IEEE.
PY - 2021/11
Y1 - 2021/11
N2 - This letter presents a substrate-integrated waveguide (SIW) antenna for CubeSat applications. The compact structure utilizes middle-point feeding and shorting walls to achieve broadside radiation in the far-field at two distinct frequencies. In particular, this dual-frequency behavior is related to the transition from a dominant leaky wave (LW) on the aperture at lower frequencies to more hybrid radiation (at higher frequencies) due to LW fields and structure resonance due to truncation. This response is generated by the shorting vias at the lateral ends of the SIW antenna. Given these conditions, the developed leaky-wave antenna (LWA) prototype is well matched ($|S_{11}|$ $\leq$ -10 dB) from 23.2 to 23.5 GHz and 24.8 to 25.2 GHz with realized gains of 8 and 6 dBi, respectively. Maximum efficiency (including the connector) is around 87%. Such dual-frequency operation could enable up-link and down-link operation in the K-band. Overall dimensions of the antenna are 2 $\lambda _0$ × 2.6 $\lambda _0$ (at the lower frequency). Possible placement on CubeSats can be underneath solar panels, thus increasing the available surface area for solar power harvesting. Also, to the best knowledge of the authors, no similar dual-frequency SIW-LWA has been previously reported.
AB - This letter presents a substrate-integrated waveguide (SIW) antenna for CubeSat applications. The compact structure utilizes middle-point feeding and shorting walls to achieve broadside radiation in the far-field at two distinct frequencies. In particular, this dual-frequency behavior is related to the transition from a dominant leaky wave (LW) on the aperture at lower frequencies to more hybrid radiation (at higher frequencies) due to LW fields and structure resonance due to truncation. This response is generated by the shorting vias at the lateral ends of the SIW antenna. Given these conditions, the developed leaky-wave antenna (LWA) prototype is well matched ($|S_{11}|$ $\leq$ -10 dB) from 23.2 to 23.5 GHz and 24.8 to 25.2 GHz with realized gains of 8 and 6 dBi, respectively. Maximum efficiency (including the connector) is around 87%. Such dual-frequency operation could enable up-link and down-link operation in the K-band. Overall dimensions of the antenna are 2 $\lambda _0$ × 2.6 $\lambda _0$ (at the lower frequency). Possible placement on CubeSats can be underneath solar panels, thus increasing the available surface area for solar power harvesting. Also, to the best knowledge of the authors, no similar dual-frequency SIW-LWA has been previously reported.
KW - CubeSats
KW - dual-band antennas
KW - planar leaky-wave antennas
UR - http://www.scopus.com/inward/record.url?scp=85115127172&partnerID=8YFLogxK
U2 - 10.1109/LAWP.2021.3112054
DO - 10.1109/LAWP.2021.3112054
M3 - Article
AN - SCOPUS:85115127172
SN - 1536-1225
VL - 20
SP - 2125
EP - 2129
JO - IEEE Antennas and Wireless Propagation Letters
JF - IEEE Antennas and Wireless Propagation Letters
IS - 11
ER -