Experimental Astronomy

, Volume 33, Issue 1, pp 27–37 | Cite as

An array of lens-coupled antennas for cosmic microwave background measurements in the 30 Ghz band

  • Angel Colin
  • David Ortiz
  • Enrique Villa
  • Edurado Artal
  • Enrique Martínez-González
Original Article

Abstract

An array of bow-tie slot antennas coupled through an extended hemispherical lens is proposed to operate in the 30 GHz frequency band. The design includes a combination of three microstrip Wilkinson power dividers (WPD) and transitions to coplanar wave guides (CPW) to form the feeding antenna network. This configuration is suitable for the integration with heterodyne imaging detectors commonly used in radioastronomy. Measurements and simulation results exhibit a frequency range of operation from 20 to 40 GHz with a bandwidth of 24% achieved for −10 dB return loss at the central frequency. The measured radiation patterns show a maximum peak gain of around 13 dB with HPBW of 10° for the E-plane, and whose first side lobes are lower than 13 dB below the main lobe in both angular shift sides. The presented results will be considered as preliminary feasibility studies in the 30 GHz QUIJOTE-CMB Instrument, which is designed to study the anisotropies of the Cosmic Microwave Background (CMB).

Keywords

Bow-tie slot antenna Antenna-coupled Lens Cosmic microwave background (CMB) 

Notes

Acknowledgements

The author is grateful to the technicians: Eva Cuerno, Ana Rosa Pérez, Santiago Cembellín, and Fernando Gómez for their contributions during the fabrication process. This work was supported by the Spanish “Ministerio de Ciencia e Innovacion” through the projects ESP2004-07067-C03-01 and AYA2007-68058-C03-02.

References

  1. 1.
    Aja, B., Artal, E., de la Fuente, L., et al.: Very low-noise differential radiometer at 30 GHz for the PLANCK LFI. IEEE Trans. Microwave Theor. Tech. 53, 2050–2062 (2005)ADSCrossRefGoogle Scholar
  2. 2.
    Barkats, D., Bischoff, C., et al.: Cosmic microwave background polarimetry using correlation receivers with the PIQUE and CAPMAP experiments. Astrophys. J. Suppl. Ser. 159, 1–26 (2005)ADSCrossRefGoogle Scholar
  3. 3.
    Buder I.: Q/U Imaging Experiment (QUIET): a ground-based probe of cosmic microwave background polarization. Proc. SPIE. 7741, 77411D (2010)ADSCrossRefGoogle Scholar
  4. 4.
    Chattopadhyay, G., Zmuidzinas, J.: A dual-polarized slot antennas for millimeter waves. IEEE Trans. Antennas Propag. 46, 736–737 (1998)ADSCrossRefGoogle Scholar
  5. 5.
    Colin, A., Febvre, P.: Design of a wideband slot bow-tie antenna excited by a microstrip to CPW transition for application in the millimetre wave band, pp. 1421–1425. PIERS Proc. Moscow, Russia (2009)Google Scholar
  6. 6.
    Colin, A., Artal, E., Villa, E., et al.: Bow-tie slot antenna for 29 to 45 GHz band. Far East J. Electron. Commun. 4, 69–76 (2010)Google Scholar
  7. 7.
    Eleftheriades, G.V., Brand, Y., et al.: ALPSS: a millimetre-wave aperture-couple patch antenna on a substrate lens. Electron. Lett. 33, 169–170 (1997)CrossRefGoogle Scholar
  8. 8.
    Filipovic, D., Gearhart, S., Rebeiz, G.: Double-slot antennas on extended hemispherical and elliptical silicon dielectric lenses. IEEE Trans. Microwave. Theor. Tech. 41, 1738–1749 (1993)ADSCrossRefGoogle Scholar
  9. 9.
    Hoyland, R.: Private communicationGoogle Scholar
  10. 10.
    Kam, A., Ade, P.A.R., et al.: The POLARBEAR CMB polarization experiment. Proc. SPIE 7741, 77411E (2010)Google Scholar
  11. 11.
    Myers, M.J., Arnold, K., Ade, P., et al.: Antenna-coupled bolometer arrays for measurement of the cosmic microwave background polarization. J. Low Temp. Phys. 151, 464–470 (2008)ADSCrossRefGoogle Scholar
  12. 12.
    Olver, A.D.: Corrugated horns. Electron. Commun. Eng. J. 4, 4–10 (1992)Google Scholar
  13. 13.
    Padin, S., Shepherd, M.C., et al.: The cosmic background imager. Publ. Astron. Soc. Pac. 114, 83–97 (2002)ADSCrossRefGoogle Scholar
  14. 14.
    Rubiño-Martin, J.A., Rebolo, R., Tucci, M., et al.: The QUIJOTE CMB Experiment, Highlights of Spanish Astrophysics V, Astrophysics and Space Science Proceedings, pp. 127–135. Springer, Berlin Heidelberg (2010)CrossRefGoogle Scholar
  15. 15.
    Villa, F., Sandri, M., Mandolesi, N., et al.: High performance corrugated feed horns for space applications at millimetre wavelengths. Exp. Astron. 14, 1–15 (2002)ADSCrossRefGoogle Scholar
  16. 16.
    Wu, X., Eleftheriades, G.V., et al.: Design and characterization of single and multiple beam mm-wave circularly polarized substrate lens antennas for wireless communications. IEEE Trans. Microwave Theor. Tech. 49, 431–441 (2001)ADSCrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media B.V. 2011

Authors and Affiliations

  • Angel Colin
    • 1
  • David Ortiz
    • 2
  • Enrique Villa
    • 3
  • Edurado Artal
    • 3
  • Enrique Martínez-González
    • 2
  1. 1.Instituto de Microelectrónica de BarcelonaIMB-CNM (CSIC)BellaterraSpain
  2. 2.Instituto de Física de Cantabria (CSIC-UC)SantanderSpain
  3. 3.Dep. Ingeniería de ComunicacionesUniversidad de CantabriaSantanderSpain

Personalised recommendations