Design and analysis of a compact microstrip lowpass–bandpass diplexer with good performance for wireless applications

Rezaei, Abbas; Yahya, Salah I.; Nouri, Leila

doi:10.1017/s1759078722001465

Cited by 9 publications

(9 citation statements)

References 17 publications

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“…13. Triplexer (LP-BP) 0.79 , 0.98, 0.85 [8] Triplexer (LP-BP) 1.5 , 6 , 4.4 [9] Triplexer (LP-BP) 1.62 , 1.75 , 2.07 [15] Diplexer (LP-BP) 1.43 , 1.68 [16] Diplexer (LP-BP) 2 , 1.24 [17] Diplexer (LP-BP) 0.65, 2.5 [19] Tri-Channel BPF < 8 for all bands [20] Diplexer (BP-BP) 3.15 , 2.98 [21] Quad-Channel BP Diplexer 2.76 , 3.31 , 0.91 , 2.15 [22] Quad-Channel BPF 9 , 6 , 6 , 5 [23] LPF 5.9 [24] Dispersive Filter 4.5…”

Section: Results Comparison and Discussionmentioning

confidence: 99%

“…Microstrip structures are a suitable choice for creating filters, diplexers, triplexers and other passive filtering devices [1][2][3][4][5][6]. Among them, the devices with multiple channels are less suggested.…”

Section: Introductionmentioning

confidence: 99%

“…All of these BP-BP triplexers have high insertion losses while none of them could increase the fractional bandwidth (FBW) to 10%. Four LP-BP diplexers are achieved based on various microstrip structures in [15][16][17][18]. Similar to most of triplexers they have large dimensions.…”

Section: Introductionmentioning

confidence: 99%

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A Lowpass-Bandpass Triplexer With A New Microstrip Configuration and Compact Size for 5G and Energy Harvesting Applications

Yahya,

Zubir,

Nkenyereye

et al. 2024

IEEE Access

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This research presents a novel microstrip configuration for a lowpass-bandpass triplexer. To design this triplexer, first a lowpass filter (LPF) with some empty spaces is designed. Then, two microstrip sections are embedded inside the empty spaces to create bandpass (BP) channels. Therefore, this triplexer occupies a very small size of 0.003 λg 2 . A rigorous mathematical analysis and an optimization process are conducted to enhance the triplexer performance. The proposed triplexer features a lowpass (LP) channel cutoff frequency at 870 MHz with bandpass (BP) channels operating at 1.335 GHz and 2.055 GHz. The achieved insertion losses are 0.2 dB, 0.09 dB, and 0.04 dB for all LP and BP channels that are remarkably low, making our triplexer ideal for energy harvesting applications. All bands are flat with suitable group delays (GDs). Meanwhile, the BP channels are wide with 14.1% and 25.5% fractional bandwidths (FBWs) for the middle and upper channels respectively. Our triplexer suppresses the harmonics after the LP channel from the 1 st harmonic up to 3 rd harmonic. Fabrication and measurement of the proposed triplexer validate our designing method and the simulation results.

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Section: Results Comparison and Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A Lowpass-Bandpass Triplexer With A New Microstrip Configuration and Compact Size for 5G and Energy Harvesting Applications

Yahya,

Zubir,

Nkenyereye

et al. 2024

IEEE Access

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“…Microstrip planar passive filtering devices with high performance have been demanded by modern wireless communication systems [1][2][3][4][5][6][7]. A microstrip triplexer is a type of RF filtering devices that combines three different frequency bands into a single output port.…”

Section: Introductionmentioning

confidence: 99%

Design and fabrication of a microstrip triplexer with wide flat channels for multi-band 5G applications

Yahya,

Zubir,

Abdel Hafez

et al. 2024

PLoS ONE

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In this paper, a new microstrip triplexer is designed to work at 2.5 GHz, 4.4 GHz and 6 GHz for mid-band 5G applications. All channels are flat with three low group delays (GDs) of 0.84 ns, 0.75 ns and 0.49 ns, respectively. Compared to the previously reported works, the proposed triplexer has the minimum group delay. The designed triplexer has 18.2%, 13.7%, 23.6% fractional bandwidths (FBW%) at 2.5 GHz, 4.4 GHz and 6 GHz, respectively. The obtained insertion losses (ILs) are low at all channels. These features are obtained without a noticeable increase in the overall size. A novel and simple resonator is used to design the proposed triplexer, which includes two pairs of coupled lines combined with a shunt stub. A perfect mathematical analysis is performed to find the resonator behavior and the layout optimization. The type of shunt stub is determined mathematically. Also, the smallness or largeness of some important physical dimensions is determined using the proposed mathematical analysis. Finally, the designed triplexer is fabricated and measured, where the measurement results verify the simulations.

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“…Microstrip passive devices such as dual-channel diplexers [ 11 ], multi-channel diplexers [ 12 ], triplexers [ 13 ], and multiplexers [ 14 ] are widely demanded by modern wireless communication systems. A triplexer is a type of multiplexer which enables a single co-axial cable to run into the feed of three different antennas.…”

Section: Introductionmentioning

confidence: 99%

A Super-Efficient GSM Triplexer for 5G-Enabled IoT in Sustainable Smart Grid Edge Computing and the Metaverse

Jamshidi

Yahya

Nouri

et al. 2023

Sensors

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Global concerns regarding environmental preservation and energy sustainability have emerged due to the various impacts of constantly increasing energy demands and climate changes. With advancements in smart grid, edge computing, and Metaverse-based technologies, it has become apparent that conventional private power networks are insufficient to meet the demanding requirements of industrial applications. The unique capabilities of 5G, such as numerous connections, high reliability, low latency, and large bandwidth, make it an excellent choice for smart grid services. The 5G network industry will heavily rely on the Internet of Things (IoT) to progress, which will act as a catalyst for the development of the future smart grid. This comprehensive platform will not only include communication infrastructure for smart grid edge computing, but also Metaverse platforms. Therefore, optimizing the IoT is crucial to achieve a sustainable edge computing network. This paper presents the design, fabrication, and evaluation of a super-efficient GSM triplexer for 5G-enabled IoT in sustainable smart grid edge computing and the Metaverse. This component is intended to operate at 0.815/1.58/2.65 GHz for 5G applications. The physical layout of our triplexer is new, and it is presented for the first time in this work. The overall size of our triplexer is only 0.007 λg2, which is the smallest compared to the previous works. The proposed triplexer has very low insertion losses of 0.12 dB, 0.09 dB, and 0.42 dB at the first, second, and third channels, respectively. We achieved the minimum insertion losses compared to previous triplexers. Additionally, the common port return losses (RLs) were better than 26 dB at all channels.

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Design and analysis of a compact microstrip lowpass–bandpass diplexer with good performance for wireless applications

Cited by 9 publications

References 17 publications

A Lowpass-Bandpass Triplexer With A New Microstrip Configuration and Compact Size for 5G and Energy Harvesting Applications

A Lowpass-Bandpass Triplexer With A New Microstrip Configuration and Compact Size for 5G and Energy Harvesting Applications

Design and fabrication of a microstrip triplexer with wide flat channels for multi-band 5G applications

A Super-Efficient GSM Triplexer for 5G-Enabled IoT in Sustainable Smart Grid Edge Computing and the Metaverse

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