Hybrid Coupler Design: enhancing signal isolation for portable radar and wireless
محورهای موضوعی : Majlesi Journal of Telecommunication Devices
Elham Zandi
1
(Department of Electrical, College of Engineering, Saveh Branch, Islamic Azad University, Saveh, Iran)
majid fouladian
2
(Department of Electrical, College of Engineering, Saveh Branch, Islamic Azad University, Saveh, Ir)
jalil mazloum
3
(Department of Electrical, College of Engineering, Shahid sattari University, Tehran, Iran.)
کلید واژه: KEYWORDS: Unequal-Split Rat-Race Couplers Method, Wilkinson Power Split Method Line Impedance Method, Hybrid Coupler - Rat-Race Couplers Method,
چکیده مقاله :
The present paper deals with a hybrid microstrip coupler designed with 4 communication ports between the antenna. The telecommunication receiver system is utilized to transmit the signals from mobile, X radars with the X waveband (8-12GHz), and static systems. In this work, we used microstrip platform design techniques including Unequal-Split Rat-Race Couplers, Rat-Race Couplers, Wilkinson Power Split, and Line Impedance. These methods are utilized to determine the signal transmission power quantity. The presented design can be run in microwave frequency distances and long-range radars. The value S11 parameter is almost -5.68 dB that is improved compared to the former research. The hybrid coupler has general dimensions of 20 mm × 20 mm, which were decreased to the same size. The simulations were conducted in the CST software. KEYWORDS: Unequal-Split Rat-Race Couplers Method, Hybrid Coupler - Rat-Race Couplers Method, Wilkinson Power Split Method Line Impedance Method
[1] M.M. Honari and R. Mirzavand, Pedram Mousavi, and Abdolali Abdipour. "Class of miniaturised/arbitrary power division ratio couplers with improved design flexibility." IET Microwaves, Antennas & Propagation 9, no. 10, pp 1066-1073, 2015
[2] P. Mondal and A. Chakrabarty. "Design of miniaturised branch-line and rat-race hybrid couplers with harmonics suppression." IET microwaves, antennas & propagation 3, no. 1, pp 109-116, 2009.
[3] P.J. Chou, C.C. Yang and C.Y. Chang, "Exact synthesis of unequal power division filtering rat-race ring couplers." IEEE Transactions on Microwave Theory and Techniques 66, no. 7, pp 3277-3287, 2018.
[4] J. Selga, P. Coromina, A. Velez, F. Prieto, J. Bonache and M. Ferran, "Miniaturised and harmonic-suppressed rat-race couplers based on slow-wave transmission lines." IET Microwaves, Antennas & Propagation 13, no. 9, pp 1293-1299, 2019.
[5] M.S. Ghaffarian, G. Moradi and P. Mousavi, "Dual band/Dual Mode Branch-Line/Rat-Race Coupler Using Artificial Transmission Line." In 2019 27th Iranian Conference on Electrical Engineering (ICEE), pp. 1622-1626. IEEE, 2019.
[6] X. Shen, Y. Liu, S. Zhou and Y. Wu. "Coupled-line directional coupler with tunable power division ratio and operating frequency." IET Microwaves, Antennas & Propagation 11, no. 1, pp 59-68, 2017.
[7] S. Simion, "Small-size ring coupler design method based on fully distributed composite right/left-handed approach." Electronics letters 48, no. 23, pp 1481-1483, 2012.
[8] K.Y.Chan and R. Ramer. "Low-cost E-band Lange coupler with vialess load." Electronics Letters 51, no. 11, pp 839-841, 2015.
[9] C-C. Chen, C. Y. D. Sim, and Y-J. Wu. "Miniaturised dual-band rat-race coupler with harmonic suppression using synthetic transmission line." Electronics Letters 52, no. 21, pp 1784-1786, 2016.
[10] J. Ha and Y. Lee. "Generalised capacitive-loading method for miniaturisation of forward-wave directional coupled-line couplers with arbitrary
