A new compact microstrip two-layer bandpass filter using aperture-coupled SIR-hairpin resonators with transmission zeros

Djaiz, A.; Denidni, A.T.

doi:10.1109/tmtt.2006.872797

Cited by 60 publications

(28 citation statements)

References 21 publications

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“…Numerous bandpass filters, adopting different approaches to produce transmission zeros at the lower and upper stopbands have been reported in [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17]. A straightforward way to produce two transmission zeros is to use two shunt open-circuited stubs of different lengths [1][2][3][4].…”

Section: Introductionmentioning

confidence: 99%

“…A straightforward way to produce two transmission zeros is to use two shunt open-circuited stubs of different lengths [1][2][3][4]. Another method is to use the two-path approach [4][5][6][7][8][9][10][11][12]. The two-path microstripline bandpass filter consists of hairpin resonators with asymmetric tapped feed lines [4,5].…”

Section: Introductionmentioning

confidence: 99%

“…The two-path microstripline bandpass filter consists of hairpin resonators with asymmetric tapped feed lines [4,5]. These asymmetric tapped feeding lines were also used with a stepped impedance resonator in a bandpass filter [6][7][8][9]. Another example of the two-path approach was the signal interference technique used for the transversal filters [10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

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Rotationally Symmetric Coupled-Lines Bandpass Filter With Two Transmission Zeros

Wong¹,

Wang²,

Chen³

et al. 2013

PIER

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Abstract-A rotationally symmetric short-circuited stub-loaded structure is proposed to design a microstrip-line bandpass filter with two transmission zeros near the lower and upper cut-off frequency edges of operating millimeter-wave bands. Furthermore, interdigital coupled-lines and additional resonators are integrated into the proposed rotationally symmetric bandpass filter to improve the out-of-band rejection. As design examples, the in-band and out-of-band performances of two filter prototypes using single layer microstrip-lines are designed and experimentally examined. The measured results show that the filter without any interdigital coupledlines achieves a passband insertion loss of 0.97 dB at 40 GHz and out-ofband rejection of larger than 23 dB, while the filter with the interdigital coupled-lines realizes the suppressions in lower and upper-bands of, respectively, larger than 30 dB and 19 dB for the overall insertion loss of 2.1 dB at 40 GHz.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Rotationally Symmetric Coupled-Lines Bandpass Filter With Two Transmission Zeros

Wong¹,

Wang²,

Chen³

et al. 2013

PIER

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“…1) is used reject image signal (1 GHz) and some spurious signals, especially the local oscillator (LO) signals (7.88-8.88 GHz). A four-pole quasi-elliptic BPF composed of stepped-impedance hairpin resonator and miniaturized hairpin resonators [17][18][19] are designed for this application, due to its compactness and its 3-D interconnect feature between the devices on the top and bottom of the LTCC board. A high level of compactness can be achieved by stacking four resonators vertically coupled through three coupling apertures etched on a common ground plane with tapped-line input/output.…”

Section: L-band Bpfmentioning

confidence: 99%

A Compact X-Band Receiver Front-End Module Based on Low Temperature Co-Fired Ceramic Technology

Wang¹,

Li²,

Xu³

et al. 2009

PIER

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Abstract-This letter presents a compact low temperature co-fired ceramic (LTCC) receiver front-end module integrating 9 building blocks.The receiver is a twice-frequency-conversion front-end module with image rejection, works at X-band, consists of an X-band embedded image rejection band-pass filter (BPF), an Lband multilayer image rejection quasi-ellipitc BPF, two monolithic microwave integrated circuit (MMIC) low noise amplifiers (LNAs), two intermediate frequency (IF) amplifiers, two mixers, a IF BPF, and some lumped passive components. All MMICs are mounted into premaking cavities in the three layers LTCC substrate of the top surface, and the interconnection between MMICs and surface microstrip-line is established by bond wires. A multilayer five-pole Chebyshev interdigital BPF is developed as the first image rejection filter, and a four-pole quasi-elliptic BPF composed of stepped-impedance hairpin resonator and miniaturized hairpin resonators that can be coupled through the apertures on the common ground plane is proposed for as the second image rejection filter. The developed X-band receiver front-end module is fabricated using twenty layers LTCC dielectric substrate, which has a compact size of 30 × 20 × 20 mm 3 (including the metal cavity). The measured receiver gain and noise figure are more than 32 dB and less than 4 dB, respectively. The first and second image rejection is better than 28 dB and 40 dB, respectively. Compared with conventional receiver front-end module using hybrid microwave integrated circuit (HMIC) technology, the proposed receiver module not only has compact size, but also has good performance.

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“…Clearly, size compaction has become an important issue in developing new microwave filters. Currently, open-loop resonators [4][5][6], slowwave resonators [7][8][9], spiral resonators [10], and hairpin resonators [11][12][13] have been extensively investigated to overcome this difficult issue due to their compact size and attractive features. In particular, hairpin filters are fabricated by folding an open-line λ/2 microstrip resonator into a U-shaped resonator, which reduces the circuit size relative to the parallel-coupled line structure.…”

Section: Introductionmentioning

confidence: 99%

A chip-on-board packaged bandpass filter using cross-coupled topological optimised hairpin resonators for X-band radar application

Yang

Kim

2015

Microelectronics Journal

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A new compact microstrip two-layer bandpass filter using aperture-coupled SIR-hairpin resonators with transmission zeros

Cited by 60 publications

References 21 publications

Rotationally Symmetric Coupled-Lines Bandpass Filter With Two Transmission Zeros

Rotationally Symmetric Coupled-Lines Bandpass Filter With Two Transmission Zeros

A Compact X-Band Receiver Front-End Module Based on Low Temperature Co-Fired Ceramic Technology

A chip-on-board packaged bandpass filter using cross-coupled topological optimised hairpin resonators for X-band radar application

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