Microstrip bandpass filter with new type of capacitive coupled resonator

Jovanovic, S.; Nešić, A.

doi:10.1049/el:20057267

Cited by 15 publications

(16 citation statements)

References 5 publications

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“…and (19) show that for ω = 1, as well as for m = 0 or n = 0, serial impedances of the extended subnetwork N Y reduce to related serial impedances of the basic subnetwork N . They were the defining properties used to postulate the expressions listed in Table 2.…”

Section: Analysis Of An Extended Antiparallel Bpfmentioning

confidence: 98%

“…The proposed principle for generating BABPF prototypes is significant because the same concept can be applied to the analysis and enhancement of more complex antiparallel BPFs [15][16][17][18][19][20][21][22], which have been designed previously by different approximate methods and time consuming EM optimization. The BABPF prototypes are also a foundation for developing prototypes with enhanced characteristics that are more suitable for practical implementation.…”

Section: Analysis Of a Basic Antiparallel Bpfmentioning

confidence: 99%

“…A conclusion that some distinctive characteristics of the filters, such as the number and positions of the transmission and reflection zeroes, are a consequence of their topology, can be reached based on the similar characteristics of BPFs described in [5][6][7][8][9][10][11][12][13][14], distinguished by the authors into different kinds and analyzed and designed by different methods. The correlation between the topology and the electrical characteristics is especially noticeable for BPFs with capacitive coupled resonators [15][16][17][18][19][20][21][22]. The intention of this paper is to explore this correlation and to relate the electrical characteristics of this type of filters to their distinctive topology and the component values.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Theory and Realization of Simple Bandpass Filters With Antiparallel Configuration

Jovanovic¹,

Milovanović²,

Gmitrovic³

2013

PIER

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Abstract-This paper introduces a theoretical analysis as well as a design example for bandpass filters (BPF) with a distinctive topology. Based on the analysis of simple two-port symmetrical lossless networks with a parallel structure, a method for obtaining normalized BPF prototypes with desired bandwidths was developed. These prototypes can be scaled to any central frequency and symmetrical real termination in the same way as conventional filters. It is also demonstrated that with a slight modification of the basic BPF prototypes, transmission zeros with controllable frequencies can be introduced in both the lower and the upper stopband region. Such modified prototypes are more convenient for the realization of printed filters than the basic BPF prototypes. The proposed filters have almost identical characteristics in the broad vicinity of the passband region either when composed of ideal lumped elements or of transmission lines (TLs). Due to its simplicity, the proposed concept could be applied for the realization of a printed BPF at a large variety of PCB types, substrates and practical design configurations. A microstrip BPF model is realized for the experimental verification of the presented theory. The measured and theoretical results show excellent agreement, confirming the proposed concept and the exactness of the methodology.

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Section: Analysis Of An Extended Antiparallel Bpfmentioning

confidence: 98%

Section: Analysis Of a Basic Antiparallel Bpfmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Theory and Realization of Simple Bandpass Filters With Antiparallel Configuration

Jovanovic¹,

Milovanović²,

Gmitrovic³

2013

PIER

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“…It has been used for the measurement of dispersion, phase velocity [1][2][3], dielectric constant [4], discontinuities [5,6] and other special applications [7]. This structure is also used for designing microstrip filters [8][9][10]. The interest of researchers and commercial communication industry engineers to these structures has recently increased due to the application of ferroelectric thin-film substrates, high-temperature superconducting microstrip lines and metamaterials in ring resonator fabrication [11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Analysis of Capasitively Coupled Microstrip-Ring Resonator Based on Spectral Domain Method

Rezaiesarlak¹,

Kashani²,

Mehrshahi³

2008

PIER Letters

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Abstract-In this paper, full-wave analysis of a microstrip-ring resonator capacitively coupled to Microstrip transmission line is presented. The method of the analysis is based on spectral domain in rectangular coordinate system. Since this coordinate system is not compatible with ring structure, triangular basis functions have been utilized for the current distributions on the ring surface. Applying Galerkin's method in spectral domain, the resonant frequencies of the structure and current distributions on the conductors are calculated and the effects of various parameters are studied. To verify the method of analysis, our results are compared with others and the accuracy of the method has been confirmed.

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“…Practically, their only "cost" is the occupied area on a printed board. Because of that many recent papers discuss various printed filter configurations having size reduction as one of the most important design goals [2]. A bandpass filter using microstrip ring resonators with 25% size reduction compared to the conventional microstrip filter with coupled half-wavelength resonators was proposed in [1].…”

Section: Introductionmentioning

confidence: 99%

Microstrip Bandpass Filter at S Band Using Capacitive Coupled Resonator

Prabhu¹,

Singh²,

Jovanovic³

2007

PIER

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Abstract-A microstrip bandpass filter with a new type of capacitive coupled resonator is presented. The filter is designed to be smaller compared to the same type of parallel-coupled bandpass filter. The filter is designed for a centre frequency of 2.5 GHz that lies in the S-band frequency range. The insertion loss at f o is 2.4 dB and the measured 3 dB bandwidth is 8.6%. The agreement between the predicted and measured results is excellent, and even the circuit simulator gives a very good prediction for the filter characteristics.

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Microstrip bandpass filter with new type of capacitive coupled resonator

Cited by 15 publications

References 5 publications

Theory and Realization of Simple Bandpass Filters With Antiparallel Configuration

Theory and Realization of Simple Bandpass Filters With Antiparallel Configuration

Analysis of Capasitively Coupled Microstrip-Ring Resonator Based on Spectral Domain Method

Microstrip Bandpass Filter at S Band Using Capacitive Coupled Resonator

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