Precision Metal Film Resistors
... The resistors are coated with multiple layers of a baked-on fire-retardant synthetic resin which provides the units with a high degree of mechanical and electrical protection in the most adverse operating conditions. 6. TERMINATIONS. Positive contact is provided to the resistance element by precisio ...
... The resistors are coated with multiple layers of a baked-on fire-retardant synthetic resin which provides the units with a high degree of mechanical and electrical protection in the most adverse operating conditions. 6. TERMINATIONS. Positive contact is provided to the resistance element by precisio ...
Precision Metal Film Resistors
... The resistors are coated with multiple layers of a baked-on fire-retardant synthetic resin which provides the units with a high degree of mechanical and electrical protection in the most adverse operating conditions. 6. TERMINATIONS. Positive contact is provided to the resistance element by precisio ...
... The resistors are coated with multiple layers of a baked-on fire-retardant synthetic resin which provides the units with a high degree of mechanical and electrical protection in the most adverse operating conditions. 6. TERMINATIONS. Positive contact is provided to the resistance element by precisio ...
BDTIC www.BDTIC.com/infineon
... For further ESD improvement it is highly recommend to add a serial capacitor (C1). The capacitor cuts off most of the high energy created by the ESD strike. For an improved ESD robustness, C1 should be as small as possible, but has to match to the intended application frequency as well. For a broadb ...
... For further ESD improvement it is highly recommend to add a serial capacitor (C1). The capacitor cuts off most of the high energy created by the ESD strike. For an improved ESD robustness, C1 should be as small as possible, but has to match to the intended application frequency as well. For a broadb ...
BDTIC www.BDTIC.com/infineon
... General structure for a 2-step ESD approach according to Figure 11 enables to split the entire ESD current between the internal and external ESD protection device. The external device is much more robust and handles the majority of the ESD current. To avoid any impact on the RF behavior of the syste ...
... General structure for a 2-step ESD approach according to Figure 11 enables to split the entire ESD current between the internal and external ESD protection device. The external device is much more robust and handles the majority of the ESD current. To avoid any impact on the RF behavior of the syste ...
BDTIC
... General structure for a 2-step ESD approach according to Figure 11 enables to split the entire ESD current between the internal and external ESD protection device. The external device is much more robust and handles the majority of the ESD current. To avoid any impact on the RF behavior of the syste ...
... General structure for a 2-step ESD approach according to Figure 11 enables to split the entire ESD current between the internal and external ESD protection device. The external device is much more robust and handles the majority of the ESD current. To avoid any impact on the RF behavior of the syste ...
Interfacing AES3 and S/PDIF
... AES3 to AES3id or S/PDIF IF (BIG if) you know that either the transmitter or the receiver is transformer coupled and the interconnect distance is short then a simple resistor divider will match the impedances and change the level as shown in Fig. 1. This is the AES3id recommended network for creati ...
... AES3 to AES3id or S/PDIF IF (BIG if) you know that either the transmitter or the receiver is transformer coupled and the interconnect distance is short then a simple resistor divider will match the impedances and change the level as shown in Fig. 1. This is the AES3id recommended network for creati ...
Lecture 9: EM Transmission Lines and Smith Chart
... The velocity of propagation does not depend on the dimensions of the transmission line and is only a function of the parameters of the material that separates two conductors. However, the characteristic impedance DOES depend upon the geometry and physical dimensions of the transmission line. ...
... The velocity of propagation does not depend on the dimensions of the transmission line and is only a function of the parameters of the material that separates two conductors. However, the characteristic impedance DOES depend upon the geometry and physical dimensions of the transmission line. ...
type 874-lba/-lbb slotted lines
... amplitude of the minimum of the wave. This is called the voltage standing-wave ratio, VSWR. The load impedance can be calculated from the standing-wave ratio and the position of a minimum point on the line with respect to the load. The wavelength of the exciting wave can be measured by obtaining the ...
... amplitude of the minimum of the wave. This is called the voltage standing-wave ratio, VSWR. The load impedance can be calculated from the standing-wave ratio and the position of a minimum point on the line with respect to the load. The wavelength of the exciting wave can be measured by obtaining the ...
Scanning photo-induced impedance microscopy
... (shift of curve A to B in Fig. 2). This principle has been exploited in so called light-addressable potentiometric sensors (LAPS) first introduced by Hafeman [7] in 1988, who carried out photocurrent measurements at electrolyte insulator semiconductor (EIS) structures with Si3N4 as the sensitive lay ...
... (shift of curve A to B in Fig. 2). This principle has been exploited in so called light-addressable potentiometric sensors (LAPS) first introduced by Hafeman [7] in 1988, who carried out photocurrent measurements at electrolyte insulator semiconductor (EIS) structures with Si3N4 as the sensitive lay ...
Advanced Mixers
... Getting rid of the LNA seems like a really bad idea. Isn’t an LNA a must ? The LNA input impedance is matched to the antenna (or filter) for optimal power transfer into the receiver. Furthermore, the impedance match simplified board design since transmission lines can be used to bring in the signal ...
... Getting rid of the LNA seems like a really bad idea. Isn’t an LNA a must ? The LNA input impedance is matched to the antenna (or filter) for optimal power transfer into the receiver. Furthermore, the impedance match simplified board design since transmission lines can be used to bring in the signal ...
Noise Source Impedance Measurement in SMPS
... source voltage of port 1 connected to the injection probe and Vp2 is the resultant signal voltage measured at port 2 with the detection probe. The output impedance of port 1 and the input impedance of port 2 of the VNA are both 50 Ω. L1 and L2 are the primary inductances of the injection and the det ...
... source voltage of port 1 connected to the injection probe and Vp2 is the resultant signal voltage measured at port 2 with the detection probe. The output impedance of port 1 and the input impedance of port 2 of the VNA are both 50 Ω. L1 and L2 are the primary inductances of the injection and the det ...
Impedance probe technique to detect the absolute number density M. Wakabayashi
... motion of rockets or satellites for this method. However, the bridge circuit with significantly simplified way, because instrument should be installed in the part which meets con- new bridge circuit did not any transformer. These improvedition that the single antenna is not immersed in wake area men ...
... motion of rockets or satellites for this method. However, the bridge circuit with significantly simplified way, because instrument should be installed in the part which meets con- new bridge circuit did not any transformer. These improvedition that the single antenna is not immersed in wake area men ...
ELECTROCHEMICAL IMPEDANCE SPECTROSCOPY
... the relation between current and voltage is linear. Therefore, analysis of electrochemical processes at small voltage changes can be replaced by analysis of equivalent electric elements. In particular, the relationship between voltage and current for simple electrochemical chargetransfer reaction be ...
... the relation between current and voltage is linear. Therefore, analysis of electrochemical processes at small voltage changes can be replaced by analysis of equivalent electric elements. In particular, the relationship between voltage and current for simple electrochemical chargetransfer reaction be ...
Analysis of Linear Coaxial Antennas
... in Figs. 1 and 2 rigorously. One possible solution involves expanding the fields inside the coaxial cable by using a set of coaxial waveguide modes and expanding the fields in the gap regions by using a set of finite elements. The fields outside of the coaxial cable can be expressed in terms of the ...
... in Figs. 1 and 2 rigorously. One possible solution involves expanding the fields inside the coaxial cable by using a set of coaxial waveguide modes and expanding the fields in the gap regions by using a set of finite elements. The fields outside of the coaxial cable can be expressed in terms of the ...
Y. Han, and D.J. Perreault, Analysis and Design of High Efficiency Matching Networks, IEEE Transactions on Power Electronics , Vol. 21, No. 5, Sept. 2006, pp. 1484-1491.
... the right-hand port. T and matching networks could also be used as basic matching networks. However, they invariably have lower efficiency than an equivalent -section network [2] and are thus not considered here. Inductor parasitic resistance and capacitor parasitic resistance are shown as explicit ...
... the right-hand port. T and matching networks could also be used as basic matching networks. However, they invariably have lower efficiency than an equivalent -section network [2] and are thus not considered here. Inductor parasitic resistance and capacitor parasitic resistance are shown as explicit ...
RF205x Family Matching Circuits and Baluns
... To improve the circuit gain, the mixer output load could be increased to 400Ω using an extra 2:1 transformation. Shown below is an example with a capacitive transformer. An L-C transformer could also be used, as shown above with the transformer type balun in Section 3.2. The two capacitors, Cs, act ...
... To improve the circuit gain, the mixer output load could be increased to 400Ω using an extra 2:1 transformation. Shown below is an example with a capacitive transformer. An L-C transformer could also be used, as shown above with the transformer type balun in Section 3.2. The two capacitors, Cs, act ...
The Balun and The UNUN - Phil Storr`s home page
... many resources on the web that go much further but at least by now you may have a basic idea of what a Balun and an UNUN is and how to make a very ...
... many resources on the web that go much further but at least by now you may have a basic idea of what a Balun and an UNUN is and how to make a very ...
Guidelines to Keep ADC Resolution within Specification
... The parasitic inductances depend on the de-coupling capacitor types and the PCB topology chosen. For example, the capacitor is a SMD type and the intrinsic inductance is 6 nH. The PCB has no power planes, the PCB connection inductances are 10 nH/cm and the total connection length is 5cm, therefore L ...
... The parasitic inductances depend on the de-coupling capacitor types and the PCB topology chosen. For example, the capacitor is a SMD type and the intrinsic inductance is 6 nH. The PCB has no power planes, the PCB connection inductances are 10 nH/cm and the total connection length is 5cm, therefore L ...
Practical Paper 1
... The method of measuring unknown impedance using the twoprobe approach was first reported for power mains impedance measurements [4]. To briefly describe the method, Fig. 1 shows the basic measurement setup to measure the unknown impedance ZX . The setup involves an injecting probe, a receiving probe ...
... The method of measuring unknown impedance using the twoprobe approach was first reported for power mains impedance measurements [4]. To briefly describe the method, Fig. 1 shows the basic measurement setup to measure the unknown impedance ZX . The setup involves an injecting probe, a receiving probe ...
Smith Chart Calculations
... design of impedance-matching networks. These matching networks can take on any of several forms, such as L and pi networks, a stub matching system, a series-section match, and more. With a knowledge of the Smith Chart, the amateur can eliminate much “cut and try” work. Named after its inventor, Phil ...
... design of impedance-matching networks. These matching networks can take on any of several forms, such as L and pi networks, a stub matching system, a series-section match, and more. With a knowledge of the Smith Chart, the amateur can eliminate much “cut and try” work. Named after its inventor, Phil ...
Power Suppply and UART Circuit
... a high level to indicate the active antenna absent. AADET_N will change to a low level when active antenna is connected well. ...
... a high level to indicate the active antenna absent. AADET_N will change to a low level when active antenna is connected well. ...
The Comparison of the Input Impedance
... insertion loss (IL) method. Two methods to measure the input impedance use the same equipments: the spectrum analyzer and the current probe.The input impedance of SMPS measurement setup is shown in Fig. 1. Schneider [1] proposed the resonance method to measure the input impedance. This method assume ...
... insertion loss (IL) method. Two methods to measure the input impedance use the same equipments: the spectrum analyzer and the current probe.The input impedance of SMPS measurement setup is shown in Fig. 1. Schneider [1] proposed the resonance method to measure the input impedance. This method assume ...
Impedance - Department of Physics and Astronomy : University of
... ‣ Better: use a forced oscillating air flow source at constant amplitude ...
... ‣ Better: use a forced oscillating air flow source at constant amplitude ...
High-Frequency RFID Tags: An Analytical and Numerical Approach
... In this section we examine the effect of the tag impedance on the current induced on the tag, and the corresponding scattered field. For high-frequency RFID systems the tag is often in the far-field of the reader. We model this situation two ways: by assuming that the field incident on the tag is a ...
... In this section we examine the effect of the tag impedance on the current induced on the tag, and the corresponding scattered field. For high-frequency RFID systems the tag is often in the far-field of the reader. We model this situation two ways: by assuming that the field incident on the tag is a ...
Antenna tuner
An antenna tuner, a matchbox, transmatch, antenna tuning unit (ATU), or antenna coupler is a device connected between a radio transmitter or receiver and its antenna to improve power transfer between them by matching the impedance of the radio to the antenna’s feedline. Similar matching networks are used in other equipment (such as linear amplifiers) to transform impedance.An antenna’s impedance is different at different frequencies. An antenna tuner matches a radio with a fixed impedance (typically 50 Ohms for modern transceivers) to the combination of the feedline and the antenna; useful when the antenna’s feedline impedance is unknown, complex, or otherwise different from the transceiver. Coupling through an ATU allows the use of one antenna on a broad range of frequencies. However, despite its name, an antenna ‘tuner’ actually only matches to the antenna feedline – an antenna ‘tuner’ does not and cannot change the resonant frequency of the aerial.Operating an antenna far from its design frequency and compensating with a transmatch is not as efficient as using a resonant antenna with a matched-impedance feedline. If there is still a high SWR (multiple reflections) in the feedline beyond the ATU, any loss in the feedline increases, heating the wire instead of sending out a signal. Additionally, losses in the ATU itself can also waste power.