ArulaalanM., Viswanathan Ramasamy, SaravanakumarR., and S. Maheswari. “DESIGN OF A TRIPLE-BANDPASS FILTER USING A MODIFIED T-SHAPED RECTANGULAR COUPLED WITH A STEPPED IMPEDANCE RESONATOR FOR SMART PORTABLE COMMUNICATION DEVICE APPLICATIONS”. Materials and Technology, Vol. 57, no. 4, July 2023, pp. 309–316, doi:10.17222/mit.2023.846.