TY - JOUR
T1 - Selectivity improvement of interdigital filtering-antenna using different orders for 5 G application
AU - Cahyasiwi, Dwi Astuti
AU - Roza, Emilia
AU - Mujirudin, Mohammad
AU - Nashuha, Nusriyati Mahmuda
AU - Zulkifli, Fitri Yuli
AU - Rahardjo, Eko Tjipto
N1 - Funding Information:
This work was partly supported by Hibah Internal UHAMKA under Contract No. 786/F.03.07/2022. The authors would like to thank the Telecommunication Laboratory of Electrical Engineering Department – Faculty of Engineering Universitas Indonesia for providing the measurement laboratory and CST software.
Publisher Copyright:
© The Author(s), 2022. Published by Cambridge University Press in association with the European Microwave Association.
PY - 2023/9/10
Y1 - 2023/9/10
N2 - In this paper, filter and antenna integration is studied to produce a compact device for wireless front-end equipment. Filtering antennas are advanced due to their selectivity performance, represented by a flat gain response. Two filtering antennas are proposed to improve the selectivity using different orders. The first antenna is based on second-order filter and the other on third-order filter. Both antennas are designed to operate at 4.65 GHz for mid-band 5 G application with a bandwidth of 6.45%. The first antenna integrates a rectangular radiator and an interdigital resonator based on second-order filter. It obtained a bandwidth impedance of -10 dB for 300 MHz and a maximum gain of 6.48 dBi. Meanwhile, the second design consists of a rectangular radiator and two interdigital resonators based on third-order filter as the feedline. Having the same bandwidth as the first design, the second design achieved a flat gain of 6.37 dBi in the operational bandwidth. The second antenna design showed better selectivity with sharper gain than the first design. The two antennas were fabricated and measured for validation. The simulation and measurement results showed good agreement.
AB - In this paper, filter and antenna integration is studied to produce a compact device for wireless front-end equipment. Filtering antennas are advanced due to their selectivity performance, represented by a flat gain response. Two filtering antennas are proposed to improve the selectivity using different orders. The first antenna is based on second-order filter and the other on third-order filter. Both antennas are designed to operate at 4.65 GHz for mid-band 5 G application with a bandwidth of 6.45%. The first antenna integrates a rectangular radiator and an interdigital resonator based on second-order filter. It obtained a bandwidth impedance of -10 dB for 300 MHz and a maximum gain of 6.48 dBi. Meanwhile, the second design consists of a rectangular radiator and two interdigital resonators based on third-order filter as the feedline. Having the same bandwidth as the first design, the second design achieved a flat gain of 6.37 dBi in the operational bandwidth. The second antenna design showed better selectivity with sharper gain than the first design. The two antennas were fabricated and measured for validation. The simulation and measurement results showed good agreement.
KW - 5G
KW - filtering antenna
KW - interdigital resonator
KW - selectivity
UR - http://www.scopus.com/inward/record.url?scp=85169031800&partnerID=8YFLogxK
U2 - 10.1017/S1759078722001143
DO - 10.1017/S1759078722001143
M3 - Article
AN - SCOPUS:85169031800
SN - 1759-0787
VL - 15
SP - 1179
EP - 1187
JO - International Journal of Microwave and Wireless Technologies
JF - International Journal of Microwave and Wireless Technologies
IS - 7
ER -