A miniaturized dual band Wilkinson power divider using capacitor loaded transmission lines

Rostami, Parastoo; Roshani, Sobhan

doi:10.1016/j.aeue.2018.04.014

Cited by 30 publications

(13 citation statements)

References 26 publications

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“…Microstrip technology has been widely used in modern communication systems since it is a mature and highly reliable technology for microwave-and millimeter-wave applications [1][2][3][4][5][6][7][8][9][10][11]. In particular, multiband bandpass filters (BPFs) have been utilized in wireless communication transceivers to separate frequency spectrum in different bands.…”

Section: Introductionmentioning

confidence: 99%

A Compact C-Band Bandpass Filter with an Adjustable Dual-Band Suitable for Satellite Communication Systems

et al. 2020

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A narrowband dual-band bandpass filter (BPF) with independently tunable passbands is presented through a systematic design approach. A size-efficient coupling system is proposed with the capability of being integrated with additional resonators without increasing the size of the circuit. Two flag-shaped resonators along with two stepped-impedance resonators are integrated with the coupling system to firstly enhance the quality response of the filter, and secondly to add an independent adjustability feature to the filter. The dual passband of the filter is centered at 4.42 GHz and 7.2 GHz, respectively, with narrow passbands of 2.12% and 1.15%. The lower and upper passbands can be swept independently over 600 MHz and 1000 MHz by changing only one parameter of the filter without any destructive effects on the frequency response. According to United States frequency allocations, the first passband is convenient for mobile communications and the second passband can be used for satellite communications. The filter has very good in- and out-of-band performance with very small passband insertion losses of 0.5 dB and 0.86 dB as well as a relatively strong stopband attenuation of 30 dB and 25 dB, respectively, for the case of lower and upper bands. To verify the proposed approach, a prototype of the filter is fabricated and measured showing a good agreement between numerically calculated and measured results.

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Section: Introductionmentioning

confidence: 99%

A Compact C-Band Bandpass Filter with an Adjustable Dual-Band Suitable for Satellite Communication Systems

et al. 2020

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“…Using coupled resonator technology, compact FPD has been proposed with improved selectivity [15]. The power divider with dual passband response has been designed with a transmission line using capacitive loading with ultra-wideband harmonic suppression [16]. A wideband power divider by bandpass filtering response has been designed with an interdigital coupled line and a stepped impedance ring resonator [17,18].…”

Section: Introductionmentioning

confidence: 99%

Compact D-CRLH Structure for Filtering Power Divider

Choudhary¹,

Chaudhary²

2020

PIER Letters

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This research work introduces a compact dual composite right/left handed (D-CRLH) unit cell structure for filtering power divider (FPD) application. The D-CRLH unit-cell consists of an interdigital capacitor with two shorted fingers in series. It contains a meander line, a rectangular stub, and a via in shunt, both series and shunt elements provide filtering response as a bandpass filter. This design has been developed on dielectric material of thickness 1.6 mm, usually called as Epoxy glass substrate (FR-4). The transmission line of length λ g /4 of a Wilkinson power divider has been replaced with a D-CRLH unit cell to reduce the size of proposed structure more than 60%. Another advantage of using a D-CRLH structure is the position of resonance frequency independently controlled by series parameter only because of shorted structure. The series chip resistor has been utilized to improve the isolation at resonance in between output ports. It offers miniaturization with electrical footprint area of 0.15λ g × 0.27λ g (11.4 mm × 20.4 mm), here λ g represents the guided wavelength at resonance frequency of 2.5 GHz.

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“…Power dividers (PDs) are important elements in microwave devices which can divide or combine the input signal. WPDs are type of PDs which not only provide good isolation between output ports, but also can reduce the return losses of each port [1][2][3][4][5]. Microstrip transmission lines are used to fabricate the WPD devices in microwave applications.…”

Section: Introductionmentioning

confidence: 99%

Design and implementation of a bandpass Wilkinson power divider with wide bandwidth and harmonic suppression

Soleymani¹,

Roshani²

2020

Turk J Elec Eng & Comp Sci

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In this paper a Wilkinson power divider (WPD) is presented with ultrawide-band operation and harmonic suppression. This WPD is designed using coupling lines and meandered open stubs at main branches. The center frequency of the presented WPD is 4.25 GHz, which is fabricated and measured on RT/Duroid substrate with dielectric constant of 2.2. The proposed WPD provides good filtering band with high attenuation level. The 15 dB return loss operational bandwidth (BW) of the WPD is obtained between 3.2 GHz and 5.3 GHz, which shows 50% operational bandwidth.

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A miniaturized dual band Wilkinson power divider using capacitor loaded transmission lines

Cited by 30 publications

References 26 publications

A Compact C-Band Bandpass Filter with an Adjustable Dual-Band Suitable for Satellite Communication Systems

A Compact C-Band Bandpass Filter with an Adjustable Dual-Band Suitable for Satellite Communication Systems

Compact D-CRLH Structure for Filtering Power Divider

Design and implementation of a bandpass Wilkinson power divider with wide bandwidth and harmonic suppression

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