A 60 GHz embedded SIW (substrate integrated waveguide) BPF Considering the Transition Effect

Lee, Gwang-Hoon; Yoo, Chun Sang; Kim, Younghun; Kim, Joo-Yong; Park, Yun-Hwi; Yook, Jong‐Gwan; Kim, Jun-Chul

doi:10.1109/apmc.2009.5384419

Cited by 10 publications

(7 citation statements)

References 5 publications

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“…Since this negative coupling is indispensable, the proposed structure should assure a topology that creates this coupling while conserving the compactness of the filter and the ability to be fabricated by the LTCC technology. As described in [9], it is theoretically possible, in a four-pole quasi-elliptic filter, to move the negative sign of the coupling between cavities 1 and 4 (see matrix (4)) to the coupling between cavities 1 and 2 (the coupling between cavities 1 and 4 is thus positive). This produces exactly the same filtering behavior and can help the designer to obtain the required negative coupling.…”

Section: A Theoretical Coupling Matrixmentioning

confidence: 98%

“…The ideal coupling matrix of a filter having four-pole and two transmission zeroes is given in (4), shown at the bottom of this page. The filter is centered at 150 GHz with 1.33% pass band, 5.5 dB insertion loss, 15 dB return loss and 20 dB of rejection in the out of band GHz.…”

Section: A Theoretical Coupling Matrixmentioning

confidence: 99%

“…Indeed, the operating frequencies of filters realized by LTCC were limited to the millimeter wave ranges. Several approaches are proposed for designing LTCC filters functioning around 60 GHz [2]- [4].…”

Section: Introductionmentioning

confidence: 99%

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Quasi-Elliptic and Chebyshev Compact LTCC Multi-Pole Filters Functioning in the Submillimetric Wave Region at 150 GHz

Khalil¹,

Passerieux²,

Baillargeat³

et al. 2010

IEEE Trans. Microwave Theory Techn.

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This paper proposes, for the first time to the best of our knowledge, two challenging LTCC multi-pole bandpass filters operating at 150 GHz for radioastronomy applications. Low-temperature co-fired ceramic (LTCC) technology is employed to realize these filters because it assures the high precision and compactness needed at this high frequency. The two filters are optimized by 3-D electromagnetic simulations and are validated by experimental results. Different positive and negative couplings, which are achieved by different coupling apertures, are studied. The five-pole Chebyshev filter has 8.4 dB of insertion loss in a 1.31% fractional bandwidth for 6.7 mm 2.45 mm lateral dimensions. The fourpole quasi-elliptic filter is conceived to decrease insertion loss by decreasing the number of resonant cavities while conserving the same selectivity by introducing two transmission zeros around the passband. Beside 5.5 dB of insertion loss, this filter occupies a more compact circuit area (3.32 mm 2.37 mm) and insures a very good spurious free region (16 GHz) around 150 GHz. Experimental results are in good agreement with the theoretical ones and validate the use of LTCC technology at such high frequencies over 100 GHz.

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Section: A Theoretical Coupling Matrixmentioning

confidence: 98%

Section: A Theoretical Coupling Matrixmentioning

confidence: 99%

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Quasi-Elliptic and Chebyshev Compact LTCC Multi-Pole Filters Functioning in the Submillimetric Wave Region at 150 GHz

Khalil¹,

Passerieux²,

Baillargeat³

et al. 2010

IEEE Trans. Microwave Theory Techn.

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show abstract

“…A comprehensive review of state-of-the-art in SIW research is given in [7]. Furthermore, several V-band components have been designed with SIW technology [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

“…An SIW filter demonstrated in [9] had 3 dB insertion loss at 61-63 and 15 dB return loss as well as out-of-band rejection of 25 and 15 dB for lower and upper stopbands, respectively. A multilayer SIW low temperature co-fired ceramic (LTCC) filter was reported in [10] with insertion loss of 2 dB and return loss of 16 dB at 57-64 GHz as well as out-of-band rejection of 33 and 25 dB for lower and upper stopbands at 3 GHz outside the passband. In [10], however, in order to achieve 2 dB insertion loss, an additional compensation circuit was implemented.…”

Section: Introductionmentioning

confidence: 99%