Fast and accurate C.A.D. of narrow band waveguide filters applying an electromagnetic segmentation method

Bariant, D.; Bila, Stéphane; Baillargeat, Dominique; Verdeyme, Serge; Guillon, P.

doi:10.1109/mwsym.2002.1011793

Cited by 15 publications

(6 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…First of all, the electromagnetic segmentation method [8] is used to determine the gap between the two resonators, which leads the inter-resonator coupling k of 0.0863. Then, the simulated S-parameters of the global filter are optimized by adjusting Q e/s , and k versus the gap dimensions and the lumped element values.…”

Section: Methods Of Simulationmentioning

confidence: 99%

Tunable RF-Filter Using Mn-Doped BST Ceramic Varactors

Houndonougbo¹,

Costes²,

Courrèges³

et al. 2010

Ferroelectrics

View full text Add to dashboard Cite

A two-pole combline band-pass filter loaded by ferroelectric MIM (Metal-InsulatorMetal) varactors is designed, fabricated and tested. The varactors use new Mn-doped Barium Strontium Titanate (BST) ferroelectric ceramics developed to improve the performances at microwave frequencies (i.e. compromise between tuning capabilities and losses). The filter measurements demonstrate a frequency tuning of more than 16% in the 370-430-MHz frequency range under an applied field of 2 kV/mm.

show abstract

Section: Methods Of Simulationmentioning

confidence: 99%

Tunable RF-Filter Using Mn-Doped BST Ceramic Varactors

Houndonougbo¹,

Costes²,

Courrèges³

et al. 2010

Ferroelectrics

View full text Add to dashboard Cite

show abstract

“…The conductivity of Cu is . In order to optimize the filter, the electromagnetic segmentation method is applied [13]. The normalized coupling and the input/output impedances ( and ) are chosen to meet the specifications:…”

Section: Filter Designmentioning

confidence: 99%

A Ka-Band Electronically Tunable Ferroelectric Filter

Courrèges

Li²,

Zhao³

et al. 2009

IEEE Microw. Wireless Compon. Lett.

View full text Add to dashboard Cite

This letter presents a three-pole tunable Ka-band coplanar filter that includes six high-Q BST ferroelectric capacitors. It tunes from 29 GHz up to 34 GHz (17%) with low bias voltages ranging from 0 V to 30 V. The filter has fractional bandwidths of 9.5-12.2%. It has a good insertion loss for this category of Ka-band ferroelectric filters, which is between 6.9 dB (0 V) and 2.5 dB (30 V). Two tone measurements showed that the filter has a minimum OIP3 of 15 dBm between 0 V and 30 V. The highest OIP3 value is 26 dBm achieved at a dc bias of 30 V.Index Terms-Barium strontium titanate (BST).

show abstract

“…A 4th-order Butterworth filter with two coupled cylindrical cavities can meet the given specifications. (8) A Butterworth power transfer function is defined as 1 (9) Using an in-house program, poles of the transfer function in (9) t3 "::::::: llc2 lt3 lt4 ] T , s 4 +2.6s3 + 3.4s2 + 2.6s +1 F(s) becomes a benchmark for comparing responses of the Butterworth filters designed using the proposed approach. Computation of various design parameters is described here.…”

Section: Problem Statement For Butterworth Filtersmentioning

confidence: 99%

“…In situations where a meaningful set of coarse and fine models of a microwave filter are known, space-mapping optimization [7] is efficient. Segmentation or decomposition methods recently gained attention for faster EM-CAD of microwave circuits [8]. In spite of the above-said advances, there is a scope for further research on EM based CAD of cavity resonator filters.…”

Section: Introductionmentioning

confidence: 99%

Equivalent Circuit and Electromagnetic Based CAD Tool for Dual-Mode Ku-Band Elliptic and Butterworth Filters

Yamini

Devabhaktuni

2006

2006 Canadian Conference on Electrical and Computer Engineering

View full text Add to dashboard Cite

Recent drive in RF/microwave industries towards higher operating frequencies and complex designs, coupled with corporate pressures like manufacturability-driven design and time-to-market, demand advanced computer aided design (CAD) tools for microwave and millimeter-wave circuits. Filtering is a key operation in most high-frequency applications. Dual-mode filters are attractive since they reduce the needfor number of resonators (or cavities) by a factor of two. Butterworth filters, in particular, provide a maximally flat response in the pass-band. In this paper, we present a CAD approach for design and tuning of dual-mode Ku-bandfilters.In the proposed approach, design and tuning are performed using an equivalent-circuit based in-house computer program and a full-wave EM solver. The approach is illustrated via design and tuning ofa 14.5 GHz Butterworth filter.

show abstract

Fast and accurate C.A.D. of narrow band waveguide filters applying an electromagnetic segmentation method

Cited by 15 publications

References 5 publications

Tunable RF-Filter Using Mn-Doped BST Ceramic Varactors

Tunable RF-Filter Using Mn-Doped BST Ceramic Varactors

A Ka-Band Electronically Tunable Ferroelectric Filter

Equivalent Circuit and Electromagnetic Based CAD Tool for Dual-Mode Ku-Band Elliptic and Butterworth Filters

Contact Info

Product

Resources

About