Small Integrated Bandpass Filter using two Identical closed Rectangular Resonators on a Capacitive Load for Wireless Communications Systems

Belmajdoub, A.; Jorio, M.; Bennani, Saad Dosse; Alami, A. El; Boutejdar, A.

doi:10.1109/wits.2019.8723776

Cited by 5 publications

(4 citation statements)

References 3 publications

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“…The geometry of the conventional rectangular resonator [24] consists of five microstrip line sections closed by a lumped capacitor (1.15 pF) and implemented on a dielectric substrate RT6010 with thickness h=1.27 mm and relative permittivity ԑr=10.2, as shown in Figure 1. This resonator operates at 2.4 GHz with an unloaded quality factor of around 128.55.…”

Section: The Conventional Rectangular Resonator Characteristicsmentioning

confidence: 99%

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Design of compact microstrip bandpass filter using square DMS slots for Wi-Fi and bluetooth applications

et al. 2021

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This paper presents the design of a compact bandpass filter based on two identical rectangular resonators and is implemented on microstrip technology for Wi-Fi and bluetoothapplications. To reduce the size of the filter, the defected microstrip structure (DMS) technique is proposed. This technique consists of etching slots in the rectangular resonator, which results in a change in the line properties and increase of the effective inductance and capacitance. This feature is used for miniaturization. The designed filter has a compact size (6.82x8.3) mm² with a low insertion loss of -0.1 dB and a good return loss of -36 dB. The simulation results are realized using the (computer simulation technology) CST Microwave software.

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Section: The Conventional Rectangular Resonator Characteristicsmentioning

confidence: 99%

“…In this paper, a compact microstrip bandpass filter based on two identical rectangular resonators using the DMS technique has been presented, which is a continuation of another work [24,25]. The design procedure follows two main steps.…”

mentioning

confidence: 99%

Design of compact microstrip bandpass filter using square DMS slots for Wi-Fi and bluetooth applications

et al. 2021

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“…Compact planar filter structures have become increasingly reliable over the past few years. Several manufacturing processes for tunable compact filters are presented in the literature such as stepped-impedance resonator filter design [3], parallel coupled line filter [4,5], ring resonator filter design [6], filter designed on a defect ground structure [7] and open loop resonator filter design [8,9].…”

Section: Introductionmentioning

confidence: 99%

Design of a compact reconfigurable bandpass filter using interdigital capacitor, DMS slots and varactor diode for wireless RF systems

Belmajdoub¹,

Jorio²,

Bennani³

et al. 2021

J. Inst.

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This paper proposes a new design of a reconfigurable bandpass filter based on an interdigital capacitor and varactor diode for wireless and mobile applications. The designed reconfigurable bandpass filter has been implemented on an RT 6010 substrate with a relative dielectric constant of 10.2, thickness of 1.27 mm, and loss tangent of 0.0023. In order to reduce the filter size, the defected microstrip structure (DMS) is used due to its easy design, high compactness, high quality factor and easy integration with other RF devices. The suggested reconfigurable filter has a simple structure with a very attractive compact size of 4.7 × 8.4 mm2, low insertion loss than -1 dB, and tuning range (2–2.6 GHz).

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“…3 Some previous studies have adopted a layered transmission line (TL) topology to achieve higher-order filtering without increasing the filter size. [4][5][6][7][8][9][10][11][12][13][14][15][16][17] Cascading a low-pass filter (LPF) with a cross-coupled BPF, 5 use of three coupled-line sections with different electrical lengths and coupling factors, 6 or the quarter-wavelength stepped coupled-line coupler 7 and discriminating coupling between feeding lines and resonators using the lowtemperature co-fired ceramic (LTCC) technology 9 are some examples of such approaches. However, the design complexity and fabrication requirements increase with the number of layers.…”

Section: Introductionmentioning

confidence: 99%

Microwave bandpass filter by feedback interference topology

Alburaikan

Aldhubaib

2020

Int J RF Microw Comput Aided Eng

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This paper proposes a signal feedback interference topology to control the characteristics of a coupled line bandpass filter. Control is carried out by varying the ratio of the transmission line parameters of the forward and the feedback couplers. The topology produces a compact filter that does not require a complicated design or fabrication. The results of the insertion and return losses show that the feedback‐controlled design has desirable features in terms of the design frequency, fractional bandwidth, stopband rejection level, roll‐off rate and insertion loss. The test results of the fabricated prototype achieved good agreement with the simulation results of the ideal transmission line design model. Several microwave, modern wireless and mobile/satellite communication systems may benefit from such a filter design due to its compactness and flexibility.

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Small Integrated Bandpass Filter using two Identical closed Rectangular Resonators on a Capacitive Load for Wireless Communications Systems

Cited by 5 publications

References 3 publications

Design of compact microstrip bandpass filter using square DMS slots for Wi-Fi and bluetooth applications

Design of compact microstrip bandpass filter using square DMS slots for Wi-Fi and bluetooth applications

Design of a compact reconfigurable bandpass filter using interdigital capacitor, DMS slots and varactor diode for wireless RF systems

Microwave bandpass filter by feedback interference topology

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