Hybrid Microstrip Diplexer Design for Multi-band WiMAX Application in 2.3 and 3.5 GHz Bands

Sazali, M. A.; Shairi, N. A.; Zakaria, Zahriladha

doi:10.11591/ijece.v8i1.pp576-584

Cited by 7 publications

(6 citation statements)

References 26 publications

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“…Diplexers are important blocks in microwave circuits and communication devices [1][2][3][4][5][6][7][8] like; GSM [9], GPS and WLAN [10,11], antenna [12], radars [13], multiple-frequency devices [14], Diplexers consist of three-ports, which separates input signals into two different pathways. The usual method to design and construct of diplexers is connecting filters together.…”

Section: Introductionmentioning

confidence: 99%

Design of bandpass–bandpass diplexers using rectangular-, T-, and L-shaped resonators for hybrid power amplifier and 5G applications

Tahmasbi

Razaghian

Roshani

2021

Analog Integr Circ Sig Process

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In this paper, two bandpass-bandpass diplexers, based on L-, T-and rectangular-shaped resonators are designed and analyzed, which are used to design a novel hybrid power amplifier (HPA) in 5G applications. By using the designed diplexers, the presented hybrid power amplifier structure can operate at two desired frequencies in two desired classes of operation. The equivalent circuits and transfer functions are extracted to study the behavior of the filters responses.Query However, the proposed analysis can be used to locate transmission zeros at desired frequencies, which can ease the design procedures of the diplexers at any desired frequency. The proposed HPA and diplexers are designed at 1.5 GHz and 2.1 GHz operating frequencies. To verify the results, one of the proposed diplexers is fabricated, in which the obtained measured results are in good agreement with the simulated results. The insertion losses for the fabricated diplexer are less than 0.7 dB and the isolation value is achieved better than 27 dB in the operating frequencies. The overall sizes of the proposed diplexers are about (0.165k g 9 0.198k g ) and (0.75k g 9 0.07k g ). The results of the designed HPA show that the proposed HPA has desirable specifications. The drain efficiency (DE) and power added efficiency (PAE) of the proposed HPA are 60% and 53% at 1.5 GHz operating frequency while, the DE and PAE are 65% and 51.5% at 2.1 GHz respectively.

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Section: Introductionmentioning

confidence: 99%

Design of bandpass–bandpass diplexers using rectangular-, T-, and L-shaped resonators for hybrid power amplifier and 5G applications

Tahmasbi

Razaghian

Roshani

2021

Analog Integr Circ Sig Process

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“…Diplexers are the most reduced version of multiplexers, which are a combination of several devices: T-junctions and filters e.g. [1][2][3][4][5][6]. They are widely used in communication satellite applications.…”

Section: Introductionmentioning

confidence: 99%

K-band waveguide T-junction diplexer for satellite communication

et al. 2019

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Design and measurement of two waveguide diplexers on H-plane T-junction, are presented. The two diplexers structures consist of a waveguide H-plane T-junction and two waveguide obtained cavity filters. The two diplexers operate in the same frequency bands (17 GHz-19.5 GHz). The simulation results show that over the operating band of two filters, the return losses are better than 18 dB and insertion losses are lower than 0.05 dB. The proposed diplexers have been simulated using Mician µ Wave Wizard simulator based on the mode matching method (MMM). The diplexers have been validated experimentally and results are presented. Simulated and measured results show good agreement.

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“…conveniently tuned is explained in [15]. Open loop ring resonator and a folded coupled line resonators are also alternatives for bandpass filter design [16].…”

Section: Introductionmentioning

confidence: 99%

Microstrip dual mode multi-bandpass filters based on tree fractal slotted resonator for wireless communication

Bhaskar

Mathew

2019

IJEEI

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Dual mode microstrip multi-bandpass filter is proposed with tree fractal slot on a square patch resonator. The tree fractal slotted resonators are generated from conventional square patch using an iterative tree fractal generator method. A single square patch is used for realizing both dual and tri-bandpass filters exploiting the dominant, higher order and its corresponding degenerate resonant modes by the tree fractal iteration on the diagonal unequal slots on the square patch.The resonant peaks, transmission zeros and bandwidth of the pass bands can be tuned by varying the length and width of the fractal slot. By optimizing various parameters dual mode dual and tri-band pass filters are simulated, fabricated and measured. The proposed filter finds application in wireless communication devices and falls in the bands of GSM, WLAN, Bluetooth, Zigbee, WiMax and WiFi.

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Hybrid Microstrip Diplexer Design for Multi-band WiMAX Application in 2.3 and 3.5 GHz Bands

Cited by 7 publications

References 26 publications

Design of bandpass–bandpass diplexers using rectangular-, T-, and L-shaped resonators for hybrid power amplifier and 5G applications

Design of bandpass–bandpass diplexers using rectangular-, T-, and L-shaped resonators for hybrid power amplifier and 5G applications

K-band waveguide T-junction diplexer for satellite communication

Microstrip dual mode multi-bandpass filters based on tree fractal slotted resonator for wireless communication

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