Design of a novel wideband microstrip diplexer using artificial neural network

Compact wide stopband microstrip diplexer with flat channels for WiMAX and wireless applications

“…On the other hand, the best insertion losses at both channels are obtained in this work and [22]. The best return losses are obtained in [8, 22]. However, our diplexer has better group delay and harmonic attenuation.…”

“…However, they could not attenuate the harmonics well while they have narrow channels with higher group delays. On the other hand, the best insertion losses at both channels are obtained in this work and [22]. The best return losses are obtained in [8, 22].…”

“…In [21], a compact microstrip diplexer with high isolation has been proposed for global system for mobile communications (GSM) applications. In [22], a wideband microstrip diplexer has been presented using an artificial neural network method.…”

An Area-efficient Microstrip Diplexer with a Novel Structure and Low Group Delay for Microwave Wireless Applications

“…Microstrip diplexers are attractive devices for the frequency domain multiplexing in modern communication systems (Yahya, Rezaei and Nouri, 2020a). Several types of microstrip structures have been used to design diplexers for wireless applications Rezaei, Nouri and Mohammadi, 2019;Huang, et al, 2016;Rezaei, et al, 2019a;Jun-Mei, Zhou and Cao, 2016;Peng and Chiang, 2015;Rezaei, et al, 2019b;Salehi, et al, 2016;Rezaei and Noori, 2018;Chen, 2015;Xiao, 2015;Noori and Rezaei, 2017a;Mohamadi, 2017, Noori andRezaei, 2017b;Bui, et al, 2017;Guan, et al, 2014;Bukuru, Song and Xue, 2015;Yahya, Rezaei and Nouri, 2020b;. However, all of these diplexers occupy a large implementation area.…”

“…This diplexer could not suppress the harmonics whereas it has low frequency selectivity. In (Huang, et al, 2016), coupled stub loaded U-shape cells, in (Rezaei, et al, 2019a), coupled lines loaded by similar patch cells, in (Jun-Mei, Zhou and Cao, 2016), coupled U-shape structure, in (Peng and Chiang, 2015), meandrous close-loops connected to interdigital cells, in (Rezaei, et al, 2019b), coupled meandrous cells and in (Salehi, et al, 2016), and triangular open-loop resonators have been used to obtain dual-band band pass-band pass diplexers.…”