1 By Ron. Bertrand VK2DQ - © 2005 Want to build a simple, efficient
... Still the antenna enjoyed a lot of popularity for many years because it did work with an ATU. It could be tuned on multiple bands. However so could almost any bit of wire if high voltage points were avoided. A high voltage point occurs when the wire length is a half wave long or multiple thereof. In ...
... Still the antenna enjoyed a lot of popularity for many years because it did work with an ATU. It could be tuned on multiple bands. However so could almost any bit of wire if high voltage points were avoided. A high voltage point occurs when the wire length is a half wave long or multiple thereof. In ...
Fabrication, performance and parasitic parameter extraction of 850 nm high-speed vertical-cavity lasers
... lasers (VCSELs) with different aperture sizes were fabricated and characterized. Comprehensive small signal measurements and analysis were conducted. The VCSELs exhibit intrinsic, parasitic and thermal maximum bandwidth limitations of 42.3 GHz, 21.5 GHz and 17.6 GHz, respectively. Devices with a 10 ...
... lasers (VCSELs) with different aperture sizes were fabricated and characterized. Comprehensive small signal measurements and analysis were conducted. The VCSELs exhibit intrinsic, parasitic and thermal maximum bandwidth limitations of 42.3 GHz, 21.5 GHz and 17.6 GHz, respectively. Devices with a 10 ...
ZXGD3005E6 N
... Independent control of rise and fall time An application may require the turn-on (ton) and turn-off (toff) time to be independently controlled, which can be achieved by setting different RSOURCE and RSINK values. With asymmetric RSOURCE and RSINK resistors, then a potential difference will occur bet ...
... Independent control of rise and fall time An application may require the turn-on (ton) and turn-off (toff) time to be independently controlled, which can be achieved by setting different RSOURCE and RSINK values. With asymmetric RSOURCE and RSINK resistors, then a potential difference will occur bet ...
element3
... 17] Which of the following is true about the soldering tip? a} One size soldering tip is right for all jobs, only the heat is changed. b} If the temperature of the soldering tip is the same in each case, the larger work mass will heat up faster than the smaller one will. c} Iron-plated soldering ti ...
... 17] Which of the following is true about the soldering tip? a} One size soldering tip is right for all jobs, only the heat is changed. b} If the temperature of the soldering tip is the same in each case, the larger work mass will heat up faster than the smaller one will. c} Iron-plated soldering ti ...
table of contents
... counter. An antenna with no loading coils is preferred to one which does. A 2 meter antenna may not conduct enough energy to the counter if it is used on the HF bands. Antenna attenuation can greatly reduce the RF level into the counter. The coupling antenna may have to be much closer to the transmi ...
... counter. An antenna with no loading coils is preferred to one which does. A 2 meter antenna may not conduct enough energy to the counter if it is used on the HF bands. Antenna attenuation can greatly reduce the RF level into the counter. The coupling antenna may have to be much closer to the transmi ...
MFJ-249 HF/VHF SWR Analyzer
... Another common misconception is that changing a feedlines length will change SWR. If the impedance of a feedline is 50 ohms and the load impedance is 25 ohms the SWR will remain 2:1 as the feedline length changes. If line loss is low it is perfectly acceptable to make SWR measurements at the transmi ...
... Another common misconception is that changing a feedlines length will change SWR. If the impedance of a feedline is 50 ohms and the load impedance is 25 ohms the SWR will remain 2:1 as the feedline length changes. If line loss is low it is perfectly acceptable to make SWR measurements at the transmi ...
S-Pixie QRP Kit
... components constituting a typical Colpitts oscillator and keeps oscillating (the oscillation signal leaks around 1mW) when receiving the local oscillator signal is directly coupled through a capacitor to 8050. Emission state (the key is pressed), 8050 as a class C amplifier, the amplified signal via ...
... components constituting a typical Colpitts oscillator and keeps oscillating (the oscillation signal leaks around 1mW) when receiving the local oscillator signal is directly coupled through a capacitor to 8050. Emission state (the key is pressed), 8050 as a class C amplifier, the amplified signal via ...
Optical Detectors and Human Vision
... The output of photon detectors and thermal detectors as a function of wavelength is shown schematically in Figure 6-2. This figure shows the typical spectral dependence of the output of photon detectors, which increases with increasing wavelength at wavelengths shorter than the cutoff wavelength. At ...
... The output of photon detectors and thermal detectors as a function of wavelength is shown schematically in Figure 6-2. This figure shows the typical spectral dependence of the output of photon detectors, which increases with increasing wavelength at wavelengths shorter than the cutoff wavelength. At ...
Conjugate Match Myths
... symmetric, reciprocal devices and can be shown to lead to violations of R.M. Foster‟s Reactance Theorem (and so cannot be passive 2-port devices) and violations of energy conservation Walt Maxwell‟s understanding of lossy transmission line behavior is poor S.D. Stearns, K6OIK ...
... symmetric, reciprocal devices and can be shown to lead to violations of R.M. Foster‟s Reactance Theorem (and so cannot be passive 2-port devices) and violations of energy conservation Walt Maxwell‟s understanding of lossy transmission line behavior is poor S.D. Stearns, K6OIK ...
Defining Diode Data Sheet Parameters
... peak is the only peak, as shown in the figure, it is rightly called IRRM. If a second larger peak exists, technically that second peak is IRRM, but the measurement is still done from the first peak. See below for the definition of IRRM. ...
... peak is the only peak, as shown in the figure, it is rightly called IRRM. If a second larger peak exists, technically that second peak is IRRM, but the measurement is still done from the first peak. See below for the definition of IRRM. ...
A monolithic 56 Gb/s silicon photonic pulse-amplitude
... Traditional optical interconnects, implemented using parallel multimode fiber coupled to vertical cavity surface emitting laser arrays, face modal dispersion-induced limitations in satisfying longer reach (>100 m) requirements within massively parallel data center and high-performance computing syst ...
... Traditional optical interconnects, implemented using parallel multimode fiber coupled to vertical cavity surface emitting laser arrays, face modal dispersion-induced limitations in satisfying longer reach (>100 m) requirements within massively parallel data center and high-performance computing syst ...
In vivo dosimetry: philosophie
... an individual patient can only be performed at the patient level, by means of in vivo dosimetry. Several national and international organizations (AAPM, ICRU and NACP) recommend that in vivo dose measurements should be made. The purpose of this is to detect errors in individual treatment sessions du ...
... an individual patient can only be performed at the patient level, by means of in vivo dosimetry. Several national and international organizations (AAPM, ICRU and NACP) recommend that in vivo dose measurements should be made. The purpose of this is to detect errors in individual treatment sessions du ...
SiC-Diodes, SiC-MOSFETs and Gate Driver IC
... and second sourcing. Reliability issues have been shortly discussed before and all necessary reliability test can be send upon request. While at first there were several manufacturers using different transistor structures like BJT, JFET and MOSFET. Meanwhile the MOSFET has won the race. Rohm Semicon ...
... and second sourcing. Reliability issues have been shortly discussed before and all necessary reliability test can be send upon request. While at first there were several manufacturers using different transistor structures like BJT, JFET and MOSFET. Meanwhile the MOSFET has won the race. Rohm Semicon ...
FFPF08H60S 8 A, 600 V, Hyperfast II Diode FFPF08H60 S
... up-to-date technical and product information. Fairchild and our Authorized Distributors will stand behind all warranties and will appropriately address and warranty issues that may arise. Fairchild will not provide any warranty coverage or other assistance for parts bought from Unauthorized Sources. ...
... up-to-date technical and product information. Fairchild and our Authorized Distributors will stand behind all warranties and will appropriately address and warranty issues that may arise. Fairchild will not provide any warranty coverage or other assistance for parts bought from Unauthorized Sources. ...
A Comparative Study of Switching Loss in IGBT and
... Additionally, IGBT has current conduction capability that makes it widely used in applications exceeding 300V [1]. However, this device does not have an integral reverse diode. Because of this, it needs to be connected to an appropriate fast recovery diode when necessary [2]. Even though it can driv ...
... Additionally, IGBT has current conduction capability that makes it widely used in applications exceeding 300V [1]. However, this device does not have an integral reverse diode. Because of this, it needs to be connected to an appropriate fast recovery diode when necessary [2]. Even though it can driv ...
FFH75H60S 75 A, 600 V, Hyperfast Diode F H75H60S — Hyperfast Diode
... up-to-date technical and product information. Fairchild and our Authorized Distributors will stand behind all warranties and will appropriately address and warranty issues that may arise. Fairchild will not provide any warranty coverage or other assistance for parts bought from Unauthorized Sources. ...
... up-to-date technical and product information. Fairchild and our Authorized Distributors will stand behind all warranties and will appropriately address and warranty issues that may arise. Fairchild will not provide any warranty coverage or other assistance for parts bought from Unauthorized Sources. ...
Hybrid CMOS Focal Plane with Extended UV and NIR Array
... noise, large dynamic range, high speed, and various formats. The recent readout development emphasizes increasing onchip functionality using deep sub-micron CMOS (≤0.25µm). Silicon detector arrays have been designed and fabricated in a number of formats and pixel sizes and can be hybridized to virtu ...
... noise, large dynamic range, high speed, and various formats. The recent readout development emphasizes increasing onchip functionality using deep sub-micron CMOS (≤0.25µm). Silicon detector arrays have been designed and fabricated in a number of formats and pixel sizes and can be hybridized to virtu ...
Application of PIN diodes in Physics Research
... application in radar technology [3], the need to have faster devices surely lead the researchers to the PIN diode concept in which less capacitance and less reverse current provided better characteristics. As any semiconductor diode, PIN diodes are very sensitive to light, thus they are widely used ...
... application in radar technology [3], the need to have faster devices surely lead the researchers to the PIN diode concept in which less capacitance and less reverse current provided better characteristics. As any semiconductor diode, PIN diodes are very sensitive to light, thus they are widely used ...
No Slide Title
... (a) A linearly polarized wave has its electric field oscillations defined along a line perpendicular to the direction of propagation, z. The field vector E and z define a plane of polarization. (b) The E-field oscillations are contained in the plane of polarization. (c) A linearly polarized light at ...
... (a) A linearly polarized wave has its electric field oscillations defined along a line perpendicular to the direction of propagation, z. The field vector E and z define a plane of polarization. (b) The E-field oscillations are contained in the plane of polarization. (c) A linearly polarized light at ...
ZXGD3006E6 A Product Line of Diodes Incorporated
... Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express written approval of the Chief Executive Officer of Diodes Incorporated. As used herein: A. Life support devices or systems are devices or systems which: ...
... Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express written approval of the Chief Executive Officer of Diodes Incorporated. As used herein: A. Life support devices or systems are devices or systems which: ...
Schottky behavior of organic solar cells with different cathode
... Many improvements have been taken and new materials for solar cells have been explored over the years. Research has now reached the stage of using organic polymer semiconductors in solar cells. The low cost, mechanical flexibility, large scale fast production and easy modification of properties make ...
... Many improvements have been taken and new materials for solar cells have been explored over the years. Research has now reached the stage of using organic polymer semiconductors in solar cells. The low cost, mechanical flexibility, large scale fast production and easy modification of properties make ...
File
... material establish a large number of minority carriers in each material. If the applied voltage should be reversed to establish a reverse-bias situation, we would ideally like to see the diode change instantaneously from the conduction state to the non-conduction state. However, because of the large ...
... material establish a large number of minority carriers in each material. If the applied voltage should be reversed to establish a reverse-bias situation, we would ideally like to see the diode change instantaneously from the conduction state to the non-conduction state. However, because of the large ...
manufactured units reference tables
... installation manual. F. Optical Fibers 6. Caution: NEVER look into the end of an active optical fiber when using laser light output. Eye damage can occur. Wear eye protection when cleaving, terminating, and splicing fiber. 7. The number and type (multimode or singlemode) of optical fiber shall meet ...
... installation manual. F. Optical Fibers 6. Caution: NEVER look into the end of an active optical fiber when using laser light output. Eye damage can occur. Wear eye protection when cleaving, terminating, and splicing fiber. 7. The number and type (multimode or singlemode) of optical fiber shall meet ...
ZigBit 2.4GHz Wireless Modules ATZB-24-A2/B0
... The ZigBit already contains a complete RF/MCU-related design with all the necessary passive components included. The module can be easily mounted on a simple 2-layer PCB. Compared to a custom RF/MCU design, a module-based solution offers considerable savings in development time and NRE cost per unit ...
... The ZigBit already contains a complete RF/MCU-related design with all the necessary passive components included. The module can be easily mounted on a simple 2-layer PCB. Compared to a custom RF/MCU design, a module-based solution offers considerable savings in development time and NRE cost per unit ...