A passive intennodulation (PEM) near-field XY-scanner for the GSM900 frequency band has been earlier constructed to localize distortion sources in antennas and in other open structures. However, the measured inter-modulation level has been relatively high, around -90 dBm. The equipment should be...
Near-Field Systems Cylindrical Near-Field Scanner Systems Cylindrical SystemsNSI-MI’s cylindrical scanners are well suited to testing fan beam, cellular base-station, stacked dipole arrays, and antennas that have broad azimuth and narrow elevation plane patterns. They are constructed to the highest...
Near-Field Scanner 页数:52 ISBN:9786139143856 豆瓣评分 目前无人评价 评价: 写笔记 写书评 加入购书单 分享到 推荐 我要写书评 Near-Field Scanner的书评 ···(全部 0 条) + 加入购书单 谁读这本书?··· 二手市场· ··· 在豆瓣转让手里有...
1 样品扫描器:压电材料制薄片扫描器 (3D Flat Scanner™);厚度为7毫米 2 SPM扫描范围: 样品扫描,*大100 microns (XYZ) 3 扫描分辨率: < 0.005 nm (Z) < 0.015 nm (XY) < 0.002 nm (XY) 低电压模式 4 粗调定位范围:6毫米 5 反馈机制:悬臂梁光束反弹反馈,音叉反馈(选配) ...
Near-field scanner for the detection of passive intermodulation sources in base station antennas Passive intermodulation (PIM) distortion is a challenging problem in the design and manufacturing of base station antennas. Small nonlinearities, typically... S Hienonen,V Golikov,P Vainikainen,... - ...
The combination of a very high operating frequency and a 1.6-meter aperture, coupled with significant cost and weight restrictions, required a new look at near-field scanner design approaches. Nearfield Systems Inc. (NSI) developed a planar scanner that provides a planar accuracy of 4 microns ...
CBF was applied using the default parameters of the Philips scanner, whereas TONE was applied on single-channel, unfocused data with plane wave transmit. TONE images were reconstructed at a sampling of 67 mum laterally and 19 mum axially. The results obtained for a series of 5 20 mum wires ...
Near-Field Scanner Near-Field Scanning Microscope Near-Field Scanning Microwave Microscope Near-Field Scanning Microwave Microscopy Near-field scanning optical microscope Near-field scanning optical microscopy Near-field scanning optical microscopy Near-Field to Far-Field Transformation NEAR-GOOS Near-Identity...
The object of the invention is to provide a near-field spectrometer that can efficiently obtain a true spectral information. ;The near-field spectrometer <B>10 </B>comprises a Z-axis scanner <B>18, 20 </B>for bringing a sample <B>24 </B>and the tip of a probe <B>12 </B>close...
This will be attached to the tip of the scanner. Since it is a volume structure the illumination at different angles would project different patterns on the object that is placed in close proximity to the nanostructure. The sensor is placed in proximity to the object (Fig. 15). Figure 15 ...