Tri-band branch-line coupler with T-type and additional port impedance transformers

2012 ◽  
Author(s):  
Feng Lin ◽  
Qing-Xin Chu
Keyword(s):  
Branch Line ◽  
Additional Port

Identification of Asbestos Fibres in a Water Sample by X-Ray Microanalysis

1975 ◽  
Vol 33 ◽  
pp. 274-275
Author(s):  
K. A. Brookes ◽  
D. Finbow ◽  
Madeleine Samuel
Keyword(s):  
Water Sample ◽  
Background Radiation ◽  
X Ray ◽  
Left Hand ◽  
Transmission Imaging ◽  
Different Types ◽  
Normal Specimen ◽  
Liquid Nitrogen Cooling ◽  
Normal Transmission ◽  
Additional Port

Investigation of the particulate matter contained in the water sample, revealed the presence of a number of different types and certain of these were selected for analysis.An A.E.I. Corinth electron microscope was modified to accept a Kevex Si (Li) detector. To allow for existing instruments to be readily modified, this was kept to a minimum. An additional port is machined in the specimen region to accept the detector, with the liquid nitrogen cooling dewar conveniently housed in the left hand cupboard adjacent to the microscope column. Since background radiation leads to loss in the sensitivity of the instrument, great care has been taken to reduce this effect by screening and manufacturing components that are near the specimen from material of low atomic number. To change from normal transmission imaging to X-ray analysis, the special 4-position specimen rod is inserted through the normal specimen airlock.

Novel Miniaturized Harmonic Suppression Branch-Line Coupler Using Artificial Transmission Lines for UHF Applications

2011 ◽  
Vol E94-C (7) ◽  
pp. 1237-1239
Author(s):  
Chia-Hao KU ◽  
Hsien-Wen LIU ◽  
Yu-Shu LIN ◽  
Kuei-Yi LIN ◽  
Pao-Jen WANG
Keyword(s):  
Transmission Lines ◽  
Harmonic Suppression ◽  
Branch Line

Tri-band/broadband matching techniques for 3-dB branch-line couplers

2007 ◽  
Author(s):  
Sadami Tanigawa ◽  
Kunihiko Hayashi ◽  
Takao Fuji ◽  
Tadashi Kawai ◽  
Isao Ohta
Keyword(s):  
Branch Line ◽  
Broadband Matching ◽  
Matching Techniques

A novel compact-size branch-line coupler

2005 ◽  
Vol 15 (9) ◽  
pp. 588-590 ◽  
Author(s):  
Shry-Sann Liao ◽  
Pou-Tou Sun ◽  
Nien-Chung Chin ◽  
Jen-Tee Peng
Keyword(s):  
Branch Line ◽  
Compact Size

A Novel Dual-Band Branch Line Coupler for Dual-Band Butler Matrix

2019 ◽  
Vol 66 (12) ◽  
pp. 1987-1991 ◽  
Author(s):  
Aijaz M. Zaidi ◽  
Binod K. Kanaujia ◽  
Mirza Tariq Beg ◽  
Jugul Kishor ◽  
Karumudi Rambabu
Keyword(s):  
Dual Band ◽  
Branch Line ◽  
Butler Matrix
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