Lens antennas – analysis and synthesis at mm waves - FER
Keywords – Lens antennas, millimetre waves, antenna synthesis. 1. INTRODUCTION ... opportunities in case we can optimize feed and lens simultaneously. Additionally ... performance, together with optimized analyzing kernels has offered us ...
CCAM: A Novel Millimeter-Wave Instrument Using a Close-Packed
silicon lens re-imaging system, construction and optimization of the pulse ... columns and accompanying read-out electronics into an array of 256 millimeter- wave detec- tors into a .... 4.3 Calculated Thermal Performance of the Detector Array .
The POLARBEAR-2 and the Simons Array Experiment
Dec 22, 2015 ... B-mode signal from weak gravitational lensing and search for the degree .... Framework for performance forecasting and optimization of cmb b-mode ... Epoxy -based broadband antireflection coating for millimeter-wave optics.
Optimization and characterization of a high repetition rate, high
makes it distinctive from conventional traveling wave amplifiers. ... rate performance of a regenerative amplifier was made ... Also, Nd:YAG exhibits strong thermal lensing as a function of the ... 2 diameters in mm are indicated at various posi-.
Flat optics with designer metasurfaces - Harvard John A. Paulson
Jan 23, 2014 ... millimetre-wave transmit-arrays and reflect-arrays. Metasurfaces can ..... The tuning range of phase ... easier fabrication and leads to the broadband performance of flat .... A beam deflector and a flat lens with high transmission.
microwave lens designs: optimization, fast simulation - Virginia Tech
Sep 11, 2009 ... Keywords: microwave lens, rotman lens, printed lens, beam-forming network, minimum ... They provide ideal performance for applications such as ... The comparison between full-wave simulation and measurement has ...
Exploiting the dispersion of the double-negative- index - Spiral
Lens Antenna: Steering Millimeter Waves," J. Appl. Phys. 115, 124902 ... technique, which involves a lens profile optimization for broadband performance.
arXiv:1007.3672v1 [astro-ph.CO] 21 Jul 2010 - inSPIRE
Jul 21, 2010 ... Although polarized galactic foreground sources at sub-millimeter ... c Does not include loss of time due to cycling of refrigerators and tuning of bolometers and SQuIDS. ... sensitivity to both the gravitational wave and lensing B-mode ..... A detailed discussion of the flight performance of the detectors and ...
Wide Field Infrared Survey Telescope [WFIRST]: Telescope design
Millimeter Wave, Amsterdam, Netherlands, July 1-6, 2012 ... Telescope design and simulated performance .... f/6.9 by the Shapley lens. .... modeling of the as- built telescope to determine the corrections needed to optimize the telescope.
Get PDF - OSA Publishing
Lens Antenna: Steering Millimeter Waves,” J. Appl. Phys. 115(12), 124902 ... technique, which involves a lens profile optimization for broadband performance.
CMB-S4 Science Book - Main Page - CMB-S4workshops
May 17, 2016 ... minutes scales for de-lensing to search for the B-mode signature imprinted by primordial ... properties and processing techniques; high throughput mm-wave telescopes and optics with unprecedented ... Refining the CMB-S4 science case and key performance parameters . ...... Optimize survey for cosmic.
Controllable continuous-wave Nd:YVO4 self - OSA Publishing
This method has the potential to alleviate thermal lensing within the Raman and laser gain media, and enable ... and impacts the performance of the Raman laser (espe- .... placed 380 mm away from the output coupler to optimize the mode ...
Low-pump-threshold continuous-wave singly - OSA Publishing
Dec 15, 1998 ... pumping technique in a 50-mm crystal, we have achieved SRO operation threshold at a ... Multiparameter tuning of the SRO yields a signal ... The device is characterized by robust turnkey operation and long-term amplitude-stable performance. .... thermal lensing in the PPLN crystal on the pump laser.
The bolometric focal plane array of the Polarbear CMB experiment
Oct 30, 2012 ... lensing of the CMB, and search for the possible B-mode signature of ... Keywords : CMB, CMB polarization, bolometer, antenna, millimeter-wave ... presents the results of tests conducted to validate the focal plane performance. .... the lenslet, but this optimization was not attempted for the Polarbear lenslets, ...
Comparison of thermal lensing effects between single-end and
continuous-wave Nd:YVO4 lasers for the 4F3/2→4I11/2 and 4F3/2→4I13/2 ... R. Weber, B. Neuenschwander, M. M. Donald, M. B. Roos, and H. P. Weber, “ Cooling ... solid state laser cavity can be designed to optimize the laser performance.
Status of SuperSpec: A Broadband, On-Chip Millimeter-Wave
Jan 10, 2015 ... Development of a millimeter-wave multi-object spectrometer will also enable the ..... coating to the silicon lens, optimizing the coupling factors Qfeed and ..... L. J., Tucker, C. E., and Zmuidzinas, J., “Design and Performance of.
Northern Extended Millimeter Array - IRAM
Impact of millimeter wave astronomy in a multi-wavelength world. During the last 30 ... large steps in instrument performance are predictable over the next decade. This will ... composition in weak intervening lensing galaxies. In the local ...... receivers without mechanical tuning elements will enable to operate time-sharing .
A Diffraction Limited Objective Lens for the Detection of Bose
The objective lens with a focal length of 136.9 mm achieves a numerical .... levels , and on the other hand a possible discription by a wave function. ...... In order to reach diffraction limited performance, further optimization has to be done.
microwave and millimetre wave engineering, in integrated circuit design for multi- standard ..... optimization of the spectrum utilization and the overall performance of the ..... array for the lens was designed and manufactured in VTT, see Fig. 24.
Planar Surface-Wave Sources and Metallic Grating Lenses for
grating lenses are investigated for millimeter-wave frequencies of operation .... elements. A grating lens can also be used for performance improvements. .... oretical considerations in the optimization of surface waves on a planar structure ...
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