Microwave Hybrid Circuits
... over a broad band of frequencies. 3. Active devices, such as power transistors and tunnel diodes, frequently will not have stability for a short or open circuit. ...
... over a broad band of frequencies. 3. Active devices, such as power transistors and tunnel diodes, frequently will not have stability for a short or open circuit. ...
4.2.3 – Resonant Filters
... This basic circuit will allow us to consider very simply what will happen when different frequency signals are applied to it. You will need to refer to the previous graph which shows how the reactance changes with frequency. Case 1: When the input frequency is very low. In this case the reactance of ...
... This basic circuit will allow us to consider very simply what will happen when different frequency signals are applied to it. You will need to refer to the previous graph which shows how the reactance changes with frequency. Case 1: When the input frequency is very low. In this case the reactance of ...
J. Phinney and D.J. Perreault, “Filters with Active Tuning for Power Applications,” IEEE Transactions on Power Electronics , Vol. 18, No. 2, March 2003, pp. 636-647.
... ries- or parallel-tuned resonance and a reduced low-pass characteristic [e.g., the buck converters of Fig.2(a) and 2(b)]. Because the resonator effectively attenuates the ripple fundamental, an accompanying low-pass network can be designed with a higher corner frequency and smaller reactances. Inasm ...
... ries- or parallel-tuned resonance and a reduced low-pass characteristic [e.g., the buck converters of Fig.2(a) and 2(b)]. Because the resonator effectively attenuates the ripple fundamental, an accompanying low-pass network can be designed with a higher corner frequency and smaller reactances. Inasm ...
FilterPro MFB and Sallen-Key Low
... The Texas Instruments FilterPro program makes it easy to design low-pass active filters. The program aids in the design of low-pass filters implemented with the Multiple Feedback (MFB) topology. Because there are instances where the Sallen-Key filter topology is a better choice, the program also sup ...
... The Texas Instruments FilterPro program makes it easy to design low-pass active filters. The program aids in the design of low-pass filters implemented with the Multiple Feedback (MFB) topology. Because there are instances where the Sallen-Key filter topology is a better choice, the program also sup ...
Optimized design of antenna systems for radar - iTEAM
... on both sides of a unique PTFE substrate whose thickness, therefore, must be around λ/5 (little more than 1 mm at 37 GHz) to produce circular polarization (see Fig. 3b). The vertical distance and horizontal alignment between slots and dipoles are now inherently guaranteed by a standard PCB fabricati ...
... on both sides of a unique PTFE substrate whose thickness, therefore, must be around λ/5 (little more than 1 mm at 37 GHz) to produce circular polarization (see Fig. 3b). The vertical distance and horizontal alignment between slots and dipoles are now inherently guaranteed by a standard PCB fabricati ...
LMF100 High Performance Dual Switched Capacitor Filter
... Note 4: The accuracy of the Q value is a function of the center frequency (f0). This is illustrated in the curves under the heading “Typical Peformance Characteristics”. Note 5: Vos1, Vos2, and Vos3 refer to the internal offsets as discussed in the Applications Information section 3.4. Note 6: Cross ...
... Note 4: The accuracy of the Q value is a function of the center frequency (f0). This is illustrated in the curves under the heading “Typical Peformance Characteristics”. Note 5: Vos1, Vos2, and Vos3 refer to the internal offsets as discussed in the Applications Information section 3.4. Note 6: Cross ...
E040339-00 - DCC - LIGO Document Control Center Portal
... The motor must be turned off, the clear plastic adaptor port cover removed for access to the coupling. The hub set screws loosened to allow the hubs to slide apart on the shafts; it may be possible to change out the spider without removing the motor base hold down screws. If enough clearance to remo ...
... The motor must be turned off, the clear plastic adaptor port cover removed for access to the coupling. The hub set screws loosened to allow the hubs to slide apart on the shafts; it may be possible to change out the spider without removing the motor base hold down screws. If enough clearance to remo ...
Active enhanced tunable high-Q on-chip E-band resonators in 130nm SiGe BiCMOS
... fully-integrated single-chip solutions is the high loss associated with on-chip transmission lines on the back-end-of-line (BEOL) metallization layers [3]. Quarter or half wavelength transmission lines are used to make resonators which are a basic building block of filters and oscillators [4]. Quart ...
... fully-integrated single-chip solutions is the high loss associated with on-chip transmission lines on the back-end-of-line (BEOL) metallization layers [3]. Quarter or half wavelength transmission lines are used to make resonators which are a basic building block of filters and oscillators [4]. Quart ...
Series and Parallel Resistor Combinations (2.5, 8.5)
... Equivalent Resistance • The rest of the circuit cannot tell whether the resistor network or the equivalent resistor is connected to it. • The equivalent resistance cannot be used to find voltages or currents internal to the resistor network. ...
... Equivalent Resistance • The rest of the circuit cannot tell whether the resistor network or the equivalent resistor is connected to it. • The equivalent resistance cannot be used to find voltages or currents internal to the resistor network. ...
AN1993 High sensitivity applications of low
... If ZF represents the impedance associated with the circuit feedback mechanisms (stray capacitances, inductances and radiated fields), and ZIN is the equivalent input impedance, a divider is created. This divider must have an attenuation factor greater than the gain of the amplifier if the amplifier ...
... If ZF represents the impedance associated with the circuit feedback mechanisms (stray capacitances, inductances and radiated fields), and ZIN is the equivalent input impedance, a divider is created. This divider must have an attenuation factor greater than the gain of the amplifier if the amplifier ...
New CMOS Realization of Voltage Differencing Buffered Amplifier
... block has high impedance input terminals and low impedance output terminal, providing advantages at voltage mode circuits. Besides, VDBA has a transconductance gain, thus the proposed circuits can be employed without using any external resistors. Two new voltage-mode biquad filter configurations are ...
... block has high impedance input terminals and low impedance output terminal, providing advantages at voltage mode circuits. Besides, VDBA has a transconductance gain, thus the proposed circuits can be employed without using any external resistors. Two new voltage-mode biquad filter configurations are ...
A Novel Second-Order All-Pass Filter Using Square
... introduced in the literature [8], [9]. Although many different types of SRD filters were designed so far, unfortunately, the proposed circuits cannot satisfy a high quality factor and electronic tunable all-pass characteristics together in second order [2], [6], [9], [10]. All-pass filter is a very ...
... introduced in the literature [8], [9]. Although many different types of SRD filters were designed so far, unfortunately, the proposed circuits cannot satisfy a high quality factor and electronic tunable all-pass characteristics together in second order [2], [6], [9], [10]. All-pass filter is a very ...
wide bandwidth low cost saw notch filters
... achieved either one or the other. Notch Filters using the Single Phase Unidirectional Transducer (SPUDT) SAW notch element have achieved good null depth and null bandwidth, but have had little success in achieving a broad passband response [1]. Other filters, used in the CATV industry, have achieved ...
... achieved either one or the other. Notch Filters using the Single Phase Unidirectional Transducer (SPUDT) SAW notch element have achieved good null depth and null bandwidth, but have had little success in achieving a broad passband response [1]. Other filters, used in the CATV industry, have achieved ...
Fundamentals of Silicon Photonic Devices
... waveguide. In Silicon, the minimum turning radius is 250 µm compared to 5,000 um in silica; the Si index is 3.4 compared to 1.6; and the temperature coefficient, dn/dT, is 18E-5/C compared to 1E-5/C silica. Other differences will be described later. The 1-by-2 splitter, a common passive circuit is u ...
... waveguide. In Silicon, the minimum turning radius is 250 µm compared to 5,000 um in silica; the Si index is 3.4 compared to 1.6; and the temperature coefficient, dn/dT, is 18E-5/C compared to 1E-5/C silica. Other differences will be described later. The 1-by-2 splitter, a common passive circuit is u ...
New Gain Controllable Resistor-less Current
... tors employed in the proposed circuit were simulated by using the parameters of the PR200N and NR200N bipolar transistors of ALA400 transistor array from AT&T [30]. The circuit was biased with ±2.5 V supply voltages, C = 1 nF, IB1 = IB4 = 100 µA, IB2 = 200 µA and IB3 = 50 µA. Simulated gain and phas ...
... tors employed in the proposed circuit were simulated by using the parameters of the PR200N and NR200N bipolar transistors of ALA400 transistor array from AT&T [30]. The circuit was biased with ±2.5 V supply voltages, C = 1 nF, IB1 = IB4 = 100 µA, IB2 = 200 µA and IB3 = 50 µA. Simulated gain and phas ...
High-frequency two-input CMOS OTA for continuous
... converter. Using the standard square-law model for MOS transistors in their saturation region, the differential output current I,,/ can be expressed as where k, = 0.5puCu,(WIL)is the transconductance parameter (p,,, CO,.W and L are the mobility, oxide capacitance per unit area, and channel width and ...
... converter. Using the standard square-law model for MOS transistors in their saturation region, the differential output current I,,/ can be expressed as where k, = 0.5puCu,(WIL)is the transconductance parameter (p,,, CO,.W and L are the mobility, oxide capacitance per unit area, and channel width and ...
power quality improvement using hybrid power filter
... equipment is used in industrial and domestic purposes. These equipments have significant impact on the quality of supplied voltage and they increased the harmonic current pollution of the distribution system. They have many negative effects on power system equipment and customer, such as additional ...
... equipment is used in industrial and domestic purposes. These equipments have significant impact on the quality of supplied voltage and they increased the harmonic current pollution of the distribution system. They have many negative effects on power system equipment and customer, such as additional ...
Simulation and Experimental Demonstration ofLow-/High
... Memristor was first postulated by Prof. Leon Chua in the year 1971, as the missing non-linear two terminal passive device relating magnetic flux and electric charge. The memristor behaves like a non-linear resistor having ‘memory’, as its present state is dependent upon the history of the current th ...
... Memristor was first postulated by Prof. Leon Chua in the year 1971, as the missing non-linear two terminal passive device relating magnetic flux and electric charge. The memristor behaves like a non-linear resistor having ‘memory’, as its present state is dependent upon the history of the current th ...
2. Proposed Circuit
... be electronically adjusted without affecting the quality factor. Fig. 7 shows the magnitude responses of BR and BP (when Iin2 = Iin3 = 0 and Iin1= Iin ) functions for different values of IS1, by keeping IB1= IB2 = 45 µA, IS2= 180 µA, and C1=C2= 0.2 nF. The quality factor was found to vary as 20, 12, ...
... be electronically adjusted without affecting the quality factor. Fig. 7 shows the magnitude responses of BR and BP (when Iin2 = Iin3 = 0 and Iin1= Iin ) functions for different values of IS1, by keeping IB1= IB2 = 45 µA, IS2= 180 µA, and C1=C2= 0.2 nF. The quality factor was found to vary as 20, 12, ...
Ideal LP response - EngineeringDuniya.com
... A band-stop filter or band-rejection filter passes most frequencies unaltered, but attenuates those in a specific range to very low levels. It is the opposite of a band-pass filter. A notch filter is a band-stop filter with a very narrow stop band.(high Q factor).Notch filters are used in live sound ...
... A band-stop filter or band-rejection filter passes most frequencies unaltered, but attenuates those in a specific range to very low levels. It is the opposite of a band-pass filter. A notch filter is a band-stop filter with a very narrow stop band.(high Q factor).Notch filters are used in live sound ...
DOC
... 4. Plot your experimental results for voltage gain, |H(w)|, as a function of log10(linear frequency) for each of the three filters — low pass, high pass and band pass. Plot each filter on a separate graph. In a separate set of three graphs, plot your experimental results for phase shift (in degrees) ...
... 4. Plot your experimental results for voltage gain, |H(w)|, as a function of log10(linear frequency) for each of the three filters — low pass, high pass and band pass. Plot each filter on a separate graph. In a separate set of three graphs, plot your experimental results for phase shift (in degrees) ...
Analog and digital filters
... signal, such as the components lying within a certain frequency range. The following block diagram illustrates the basic idea. ...
... signal, such as the components lying within a certain frequency range. The following block diagram illustrates the basic idea. ...
Log-Domain Filters Based On LC Ladder Synthesis
... Fig. 10 plots both the simulated and experimental performance of the 5th-order Chebyshev filter derived in Section IV versus its desired frequency response. The simulation results were found by performing HSPICE AC analysis on the circuit of Fig. 9. This test was repeated using both ideal transistor ...
... Fig. 10 plots both the simulated and experimental performance of the 5th-order Chebyshev filter derived in Section IV versus its desired frequency response. The simulation results were found by performing HSPICE AC analysis on the circuit of Fig. 9. This test was repeated using both ideal transistor ...
Waveguide filter
A waveguide filter is an electronic filter that is constructed with waveguide technology. Waveguides are hollow metal tubes inside which an electromagnetic wave may be transmitted. Filters are devices used to allow signals at some frequencies to pass (the passband), while others are rejected (the stopband). Filters are a basic component of electronic engineering designs and have numerous applications. These include selection of signals and limitation of noise. Waveguide filters are most useful in the microwave band of frequencies, where they are a convenient size and have low loss. Examples of microwave filter use are found in satellite communications, telephone networks, and television broadcasting.Waveguide filters were developed during World War II to meet the needs of radar and electronic countermeasures, but afterwards soon found civilian applications such as use in microwave links. Much of post-war development was concerned with reducing the bulk and weight of these filters, first by using new analysis techniques that led to elimination of unnecessary components, then by innovations such as dual-mode cavities and novel materials such as ceramic resonators.A particular feature of waveguide filter design concerns the mode of transmission. Systems based on pairs of conducting wires and similar technologies have only one mode of transmission. In waveguide systems, any number of modes are possible. This can be both a disadvantage, as spurious modes frequently cause problems, and an advantage, as a dual-mode design can be much smaller than the equivalent waveguide single mode design. The chief advantages of waveguide filters over other technologies are their ability to handle high power and their low loss. The chief disadvantages are their bulk and cost when compared with technologies such as microstrip filters.There is a wide array of different types of waveguide filters. Many of them consist of a chain of coupled resonators of some kind that can be modelled as a ladder network of LC circuits. One of the most common types consists of a number of coupled resonant cavities. Even within this type, there are many subtypes, mostly differentiated by the means of coupling. These coupling types include apertures,[w] irises,[x] and posts. Other waveguide filter types include dielectric resonator filters, insert filters, finline filters, corrugated-waveguide filters, and stub filters. A number of waveguide components have filter theory applied to their design, but their purpose is something other than to filter signals. Such devices include impedance matching components, directional couplers, and diplexers. These devices frequently take on the form of a filter, at least in part.