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    This article has been cited by the following publications. This list is generated based on data provided by CrossRef.

    Tian, Yang Meng, Qianqian Lee, Kokyan and Wang, Hong 2015. Low-Loss Microcoax-to-CPW Transition for Air-gapped Microcoaxial Passives. IEEE Microwave and Wireless Components Letters, Vol. 25, Issue. 9, p. 585.

    Jaimes-Vera, Aline Llamas-Garro, Ignacio Ke, Maolong Wang, Yi Lancaster, Michael J. and Pradell, Lluis 2011. 2011 IEEE MTT-S International Microwave Workshop Series on Millimeter Wave Integration Technologies. p. 184.


Polymer-based micromachined rectangular coaxial filters for millimeter-wave applications

  • Aline Jaimes-Vera (a1) (a2), Ignacio Llamas-Garro (a1), Maolong Ke (a3), Yi Wang (a3), Michael J. Lancaster (a3) and Lluís Pradell (a2)
  • DOI:
  • Published online: 01 March 2011

In this paper, micromachined devices for millimeter-wave applications at U- and V-bands are presented. These structures are designed using a rectangular coaxial line built of gold-coated SU-8 photoresist layers, where the coaxial center conductor is suspended in air by stubs. The designs include a stepped coplanar waveguide (CPW)-to-coaxial transition at 63 GHz, with an insertion loss of 0.39 dB at 67.75 GHz and a return loss better than −10 dB across the band of operation between 54.7 and 70.3 GHz. Two filters have been designed; one centered at 42 GHz with a 10% bandwidth, and another at 63 GHz with a 5% bandwidth. Measured insertion losses of 0.77 and 2.59 dB were obtained for these filters, respectively. Measured return loss lower than 13.8 dB over the passband was achieved for both designs. The structures presented in this paper involve a low-cost manufacturing process suitable to produce integrated subsystems at millimeter waves.

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Corresponding author: I. Llamas-Garro Email:
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[1]E.D. Marsh ; J.R. Reid ; V.S. Vasilyev : Gold-plated micromachined millimeter-wave resonator based on rectangular coaxial transmission lines. IEEE Trans. Microw. Theory Tech., 55 (1) (2007), 7884.

[5]K. Jiang ; M.J. Lancaster ; I. Llamas-Garro ; P. Jin : SU-8 Ka-band filter and its microfabrication. J. Micromech. Microeng., 15 (2005), 15221526.

[6]M.J. Lancaster ; J. Zhou ; M. Ke ; Y. Wang ; K. Jiang : Design and high performance of a micromachined K-band rectangular coaxial cable. IEEE Trans. Microw. Theory Tech., 55 (7) (2007), 15481553.

[8]S.T. Choi ; K.S. Yang ; K. Tokuda ; Y.H. Kim : AV-band planar narrow bandpass filter using a new type integrated waveguide transition. IEEE Microw. Wirel. Compon. Lett., 14 (12) (2004) 545547.

[15]K.J. Vanhille ; D.L. Fontaine ; C. Nichols ; Z. Popovic ; D.S. Filipovic : Ka-band miniaturized quasi-planar high-Q resonators. IEEE Trans. Microw. Theory Tech., 55 (6) (2007), 12721279.

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International Journal of Microwave and Wireless Technologies
  • ISSN: 1759-0787
  • EISSN: 1759-0795
  • URL: /core/journals/international-journal-of-microwave-and-wireless-technologies
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