Local Oscillators from 1.4 to 1.9 THz
作者： Erich Schlecht , John Gill , John Ward , Goutam Chattopadhyay , Imran Mehdi
DOI:
关键词:
摘要: Local oscillators have been produced for band 6 of the Heterodyne Instrument Far Infrared (HIFI) on Herschel Space Observatory and Harvard-Smithsonian Center Astrophysics Receiver Lab Telescope (RLT) in northern Chile. These local pump hot-electron bolometer (HEB) mixer front-ends to perform high resolution spectroscopy interstellar medium. oscillator assemblies amplify 1 mW input signals 86 107 GHz before multiplying frequency by 16 or 18 with cascaded chains Schottky diode doublers triplers, ultimately covering nearly entire 1.4 1.9 THz 3 μW more at nominal operating temperature 120 K. Peak output power is typically 30 higher. Room performance sufficient HEB mixers moderately reduced bandwidth compared cryogenic operation, room 10 range. The chain outputs are Gaussian beams diagonal horns integrated into final stage multiplier blocks. Beam pattern measurements 1.8 confirm predicted horns.
harvard.edu
jsward.com 
nrao.edu 参考文章(14)
Frank Lewena, Brian J. Drouin, Gisbert Winnewisser, Christian Endres, Imran Mehdi, Frank W. Maiwald, John C. Pearson, Planar diode multiplier chains for THz spectroscopy Softwaretechnik-trends. pp. 368- 373 ,(2005)
E. Schlecht, J. Bruston, A. Fung, I. Mehdi, S. Martin, R. P. Smith, A. Maestrini, D. Pukala, R. Tsang, 200 and 400 GHz Schottky diode multipliers fabricated with integrated air-dielectric (substrateless) circuitry Softwaretechnik-trends. pp. 287- ,(2000)
L. A. Samoska, J. C. Pearson, T. C. Gaier, A. Campbell, R. R. Ferber, M. Wells, W band MMIC power amplifiers for the Herschel HIFI instrument Softwaretechnik-trends. pp. 73- ,(2003)
Jonathan H. Kawamura, Raymond Blundell, Denis Loudkov, Scott N. Paine, Edward Tong, Daniel P. Marrone, Claudio Barrientos, Daniel Luhr, Observations in the 1.3 and 1.5 THz atmospheric windows with the Receiver Lab Telescope Softwaretechnik-trends. pp. 64- 67 ,(2005)
Timothy J. Finn, Andrey Baryshev, Willem Jellema, Maarten van der Vorst, Wolfgang Wild, J. Anthony Murphy, Stafford Withington, Phase-Sensitive Near-Field Measurements and Electromagnetic Simulations of a Double-Slot HEB Integrated Lens-Antenna Mixer at 1.1, 1.2 and 1.6 THz Softwaretechnik-trends. pp. 398- 403 ,(2005)
G. Chattopadhyay, E. Schlecht, J. Gill, S. Martin, A. Maestrini, D. Pukala, F. Maiwald, I. Mehdi, A broadband 800 GHz Schottky balanced doubler IEEE Microwave and Wireless Components Letters. ,vol. 12, pp. 117- 118 ,(2002) , 10.1109/7260.993286
E. Schlecht, J. Bruston, A. Maestrini, I. Mehdi, P. Smith, S. Martin, The Frame-less Membrane: A Novel Technology for THz Circuits Eleventh International Symposium on Space Terahertz Technology. pp. 277- ,(2000)
A. Maestrini, J.S. Ward, J.J. Gill, H.S. Javadi, E. Schlecht, C. Tripon-Canseliet, G. Chattopadhyay, I. Mehdi, A 540-640-GHz high-efficiency four-anode frequency tripler IEEE Transactions on Microwave Theory and Techniques. ,vol. 53, pp. 2835- 2843 ,(2005) , 10.1109/TMTT.2005.854174
A. Maestrini, J. Bruston, D. Pukala, S. Martin, I. Mehdi, Performance of a 1.2 THz frequency tripler using a GaAs frameless membrane monolithic circuit international microwave symposium. ,vol. 3, pp. 1657- 1660 ,(2001) , 10.1109/MWSYM.2001.967223
Huei Wang, L. Samoska, T. Gaier, A. Peralta, Hsin-Hsing Liao, Y.C. Leong, S. Weinreb, Y.C. Chen, M. Nishimoto, R. Lai, Power-amplifier modules covering 70-113 GHz using MMICs IEEE Transactions on Microwave Theory and Techniques. ,vol. 49, pp. 9- 16 ,(2001) , 10.1109/22.899956