E. J. Wilkinson, "An N-Way Hybrid Power Divider," IRE Transactions on Microwave Theory and Techniques, vol. 8, no. 1, pp. 116-118, 1960.

H. C. Chen, C. Y. Chang, "Modified Vertically Installed Planar Couplers for Ultrabroadband Multisection Quadrature Hybrid," IEEE Microwave and Wireless Components Letters, vol. 16, no. 8, pp. 446-448, 2006.

H. Wang, R. W. Knepper, J. -F. Millithaler, P. Marthi, M. Margala, "A Terahertz Ring Hybrid Coupler based on Parallel Plate Dielectric Waveguide with Signal Line for a Ballistic Deflection Transistor Travelling Wave Amplifier," pp. 1-4, 2017 International Conference on Electron Devices and Solid-State Circuits (EDSSC), 2017.

S. S. Sabri, B. H. Ahmad, A. R. Othman, "Design and fabrication of X-band Substrate Integrated Waveguide directional coupler," pp. 264-268, 2013 IEEE Symposium on Wireless Technology & Applications (ISWTA), 2013.

J. Rogers, R. Bhatia, "A 6 to 20 GHz planar balun using a Wilkinson divider and Lange couplers," pp. 865-868, 1991 IEEE MTT-S International Microwave Symposium Digest, 1991.

J. Lim, D. Ahn, S. -M. Han, G. -Y. Lee, "A Wilkinson Divider Having Selective Function of Power Divider or Balun," pp. 615-617, 2024 International Conference on Ubiquitous and Future Networks (ICUFN2024), 2024.

S. Cripps, "RF Power Amplifiers for Wireless Communications," Artech House, 1996.

F. Tabatabai, H. S. Al-Raweshidy, "Feedforward Linearization Technique for Reducing Nonlinearity in Semiconductor Optical Amplifier," Journal of Lightwave Technology, vol. 25, no. 9, pp. 2667-2674, 2007.

Analog Device, "data sheet of HMC595A/595AE, v01.0515,"

K. C. Gupta, R. Garg, I. Bahl, P. Bhartia, "Microstrip Lines and Slot Lines," Artech House, 1996.

J. An, J. Lim, S.-H. Son, D. M. Kim, W.-S. Yoon, S.-M. Han, D. Ahn, "A Consideration for Port Area in Electromagnetic Simulation for CPW Transmission Lines," Journal of the Korean Institute of Information Technology, vol. 20, no. 9, pp. 73-81, 2022.

J. Lim, U. Park, S. Oh, J. Koo, Y. Jeong, D. Ahn, "A 800- to 3200-MHz Wideband CPW Balun Using Multistage Wilkinson Structure," pp. 1141-1144, 2006 IEEE MTT-S International Microwave Symposium Digest, 2006.

J. Lim, D. Ahn, S.-M. Han, S.-H. Son, D. M. Kim, "Signal Transmission Structures between Microstrip Lines and Coplanar Waveguide Lines," Korean Patent, 10-2826618, 2025.