Performance of narrowband hairpin bandpass filter square resonator with folded coupled line

Darwis, Fajri; Setiawan, Arie; Daud, Pamungkas

doi:10.1109/isitia.2016.7828674

Cited by 6 publications

(3 citation statements)

References 3 publications

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“…In S-Band frequency, various applications use a bandpass filter as an essential component. The design of a bandpass filter for S-Band applications has already been investigated in several studies [12]- [19]. The bandpass filter with the operating frequency of 3 GHz was designed to obtain a narrow bandwidth using a square resonator with folded coupled line method [12].…”

Section: Introductionmentioning

confidence: 99%

“…The design of a bandpass filter for S-Band applications has already been investigated in several studies [12]- [19]. The bandpass filter with the operating frequency of 3 GHz was designed to obtain a narrow bandwidth using a square resonator with folded coupled line method [12]. In S-Band radar application, the hairpin bandpass filter with dumbbell-DGS [13], octagonal shape [17], and square open-loop resonator [18] were proposed to block the unwanted frequency that suffers the performance of the radar system decrease.…”

Section: Introductionmentioning

confidence: 99%

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Cross-Coupled Line Bandpass Filter Based on Modified Parallel-Coupled Line Structure

Darwis¹,

Rahayu

Sutrisno

et al. 2022

J. Elektron. dan Telekomun.

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This paper presents a study of a narrow bandwidth of the bandpass filter with a cross-coupled line structure. This structure was designed to have a good filter selectivity with the transmission zeros and a simple design. Since the structure has a cross shape, cross-coupling between the resonators consequently occurs. This interferes with the passband of the filter. Optimization in the size of the coupled lines and transmission lines was done to minimize the interference. Rogers RT/duroid 5880 was used as a substrate to fabricate the bandpass filter to verify the proposed design. As a result, the fabricated cross-coupled line bandpass filter has an 80 MHz of 3 dB bandwidth with operating frequency ranges from 2.97 GHz to 3.05 GHz. The bandwidth is reduced by 20 % from the specification.It shows that the cross-coupled line structure can yield a narrow bandwidth. Based on the 3 dB bandwidth, the center frequency is shifted 0.33 % above the specification. Meanwhile, the return loss and insertion loss of the proposed bandpass filter successfully comply with the required specifications. In conclusion, the proposed bandpass filter can be applied to S-Band applications that require narrow bandwidth.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Cross-Coupled Line Bandpass Filter Based on Modified Parallel-Coupled Line Structure

Darwis¹,

Rahayu

Sutrisno

et al. 2022

J. Elektron. dan Telekomun.

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“…In [13], filter was integrated with a harmonic suppression circuit based on quarter-wavelength short stubs. Narrowband band pass filter proposed in [14] used 5 elements of square resonator with the folded coupled-line for S band application, and it resulted in the smaller size than conventional hairpin. Hairpin-line band pass filter with dual band has also been widely considered such as in [15,16].…”

Section: Introductionmentioning

confidence: 99%

Band pass filter comparison of Hairpin line and square open-loop resonator method for digital TV community

et al. 2021

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The selection of the right filter design method is a very important first step for a radio frequency engineer. This paper presents the comparison of two methods of band pass filter design using hairpin-line and square open-loop resonator. Both methods were applied to obtain filter designs that can work for broadcasting system in digital television community. Band pass filter was simulated using design software and fabricated using epoxy FR-4 substrate. The results of simulation and measurement shown return loss value at 27.3 dB for hairpin line band pass filter and 25.901 for square open-loop resonator band pass filter. Voltage standing wave ratio parameter values were 1.09 and 1.1067 for hairpin line and square open-loop band pass filter respectively. The insertion loss values for the Hairpin line band pass filter and square open-loop band pass filter were 0.9692 and near 0 dB, respectively. Fractional bandwidth, for hairpin line band pass filter, was 6.7% while for square open-loop band pass filter was 4.8%. Regarding the size, the dimension of square open-loop resonator was approximately five times larger than hairpin-line band pass filter. Based on the advantages of the hairpin line method, we recommend that researchers choose the filter for digital TV broadcasting.

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Design of a Narrow-Band Pass Asymmetric Microstrip Coupled-Line Filter with Distributed Amplifiers at 5.5 GHz for WLAN Applications

Viswanadha

Raghava

2018

Advances in Intelligent Systems and Computing

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Performance of narrowband hairpin bandpass filter square resonator with folded coupled line

Cited by 6 publications

References 3 publications

Cross-Coupled Line Bandpass Filter Based on Modified Parallel-Coupled Line Structure

Cross-Coupled Line Bandpass Filter Based on Modified Parallel-Coupled Line Structure

Band pass filter comparison of Hairpin line and square open-loop resonator method for digital TV community

Design of a Narrow-Band Pass Asymmetric Microstrip Coupled-Line Filter with Distributed Amplifiers at 5.5 GHz for WLAN Applications

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