Robert Malmqvist
Swedish Defence Research Agency, Sweden
Carl Samuelsson
Swedish Defence Research Agency, Sweden
Tony Nilsson
Swedish Defence Research Agency, Sweden
Isabel Ferrer
Swedish Defence Research Agency, Sweden
Andreas Gustafsson
Swedish Defence Research Agency, Sweden
Ladda ner artikel
Ingår i: GigaHertz 2003. Proceedings from the Seventh Symposium
Linköping Electronic Conference Proceedings 8:45, s.
Publicerad: 2003-11-06
ISBN:
ISSN: 1650-3686 (tryckt), 1650-3740 (online)
In this paper; we evaluate a new design of a previously presented (second order) tunable active X-band MMIC filter. By using a two-stage low noise amplifier in each filter section a higher filter gain and selectivity as well as a lower filter noise figure can be achieved at the expense of a smaller filter tuning range. The filter is tunable to eight different center frequencies between 7.6-8.6GHz. Typical measured data for all eight tuning states show a maximum gain that varies between 13-26dB; a 4-5dB noise figure and a spurious-free dynamic range of 58-67dB. The presented filter could potentially be utilized as an important building block to realize agile compact on-chip receiver front-ends for future adaptive X-band radar array antennas; for example.
[1] L. Pettersson et al.; "An experimental S-band digital beanforming antenna;" IEEE AES Syst. Mag.; Vol. 12; pp. 19-26; Nov. 1997.
[2] A. Gustafsson et al.; "A fully integrated radar receiver front-end including an active tunable band pass filter and image rejection mixer;" Asia-Pacific Microw. Conf.; pp. 99-102; Dec. 2000.
[3] M. Danestig et al.; Evaluations of tuneable MMIC filterx for radar applications; FOA report; FOA-R—97-00435408—SE; 1997.
[4] R. Malmqvist et al.; "A tunable active MMIC filter for on-chip X-band radar receiver front-ends;" 2002 IEEE MTT-S Int. Microw. Symp. Dig.; pp. 1907-1910; June 2002.
[5] M. Danestig et al.; "Low-noise active recursive MMIC filters;" 1997 IEEE MTT-S Int. Microw. Symp. Dig.; pp. 705-708; June 1997.
[6] M. Alfredsson et al.; "Design considerations for an image rejection mixer in a broadband digital beamforming phased array system;" 2000 Asia-Pacific Microw. Conf.; pp. 241-245; Dec. 2000.
[7] R. Malmqvist et al.; "7.6-8.6GHz agile image reject on-chip receiver front-end for adaptive Xband smart skin array antennas;" to be published in Proc. of GigaHertz 2003 Symp.; Nov. 2003.
