A three stage amplifier is to have an overall noise temperature no greater than 70 K. The overall gain of the amplifier is to be at least 45 dB. The amplifier is to be built by adding a low-noise first stage to an existing two-stage amplifier that has the gains and noise figures shown below. The stage number refer to locations in the new amplifier. Stage Power Gain Noise Figure 2 20 dB 3 dB 3 15 dB 6 dB a. What is the minimum gain in decibels that the first stage can have? b. Using the gain you calculated in part (a), calculate the maximum noise figure in decibels that the first stage can have. Express answer with two decimal places. c. Suppose the gain of the first stage could be increased by 3 dB without affecting its noise figure. What would be the effect on the noise temperature of the complete amplifier?

A three stage amplifier is to have an overall noise temperature no greater than 70 K. The overall gain of the amplifier is to be at least 45 dB. The amplifier is to be built by adding a low-noise first stage to an existing two-stage amplifier that has the gains and noise figures shown below. The stage number refer to locations in the new amplifier. Stage Power Gain Noise Figure 2 20 dB 3 dB 3 15 dB 6 dB a. What is the minimum gain in decibels that the first stage can have? b. Using the gain you calculated in part (a), calculate the maximum noise figure in decibels that the first stage can have. Express answer with two decimal places. c. Suppose the gain of the first stage could be increased by 3 dB without affecting its noise figure. What would be the effect on the noise temperature of the complete amplifier?

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter12: Power System Controls

Section: Chapter Questions

Problem 12.3P

See similar textbooks

Related questions

Q: Q1/ A piece of resistance wire, 15.6 m long and of cross-sectional area 12 mm? at temperature of 0°C...

A: Solution- a) Resistance of the wire ,R0 =VI= 2407.9=30.38 Ohm Resistivity ,ρ = R0AL ...

Q: R1 20 R2 100 R3 80 V 240Vpk 60HZ 0° C2 = 20μF L3

Q: Simplify the following Boolean function to r-SOP using Karnaugh map. F = x ỹ + x z + ỹ z + x Z + yZ+...

A: The Boolean function is given below, F=x'y' + x'z +y'z +x'z' + y'z' + x' + xy'z' + x'yz

Q: Determine Vo, Vdc, PIV and sketch the output waveform for the circuit below. Ideal diodes 2.2 ka 170...

Q: Enumerate five step-by-step procedures of Thevenin’s theorem method in application to ac electric c...

Q: When an impedance coil is connected to a 100 V, 60-Hz, ac supply, the circuit current is 1.325 A. Wh...

A: The solution is given below

Q: Find the value of the following Wilkinson's Factor: 8.

A: I am attaching detaild solution image of this question.

Q: In a JFET, the drain current is 10.1mA at VGS equal to half of VGSoff. Determine the value of IDSS i...

A: In a JFET,The drain current is,ID=10.1mAThe gate-source voltage is equal to half of VGS(off).i.e. VG...

Q: Find the complex power supplied by the source and the power factor of the source fo the network show...

Q: RE a coring distance was sent down the spring. a. On the diagram, indicate which cup(s) were hit by ...

A: (a) In the tutorial of superposition and reflection of pulse, there is a pulse reflected from the fr...

Q: Signal 2 2- Signal 1 0- -2- -4+ 0. 20 40 60 80 100 120 140 160 180 Time /uSecs 20uSecs /div Figure 3...

Q: Ex. 235. See Figure 235 Given V4=63 volts, and 3 capacitors in microfara C1=26, C2=55, C3=38, determ...

A: In this question we will find total voltages across each capacitor in given figure....

Q: IN THE CIRCUIT IN QUESTION, SWITCH S1 HAS BEEN CLOSED FOR A LONG TIME, WHILE SWITCH S2 HAS BEEN OPEN...

Q: A 60 cycle current has a maximum value of 6.5A. What will be the instantaneous value of current at (...

A: Note: As per the policy we can solve only one question at once please reupload the remaining one as ...

Q: If a cell has an E.M.F of E volts, an internal resistance of r ohms and supplies A current I ampere ...

Q: The circuit is composed of series parallel resistors with a voltage source. Compute for total resist...

A: The given circuit is shown below:

Q: 10 2 2 V V1 V2 2 A (4) 22 7A Calculate the voltage accross 4 ohm resistor.

Q: For the voltage-divider configuration of the figure below: Show the details of your work. ...

A: The given circuit is shown below:

Q: Find I, V1, V2, V3, and V4 in the circuit shown. V2 V, R2 R, 5 kN 3 Vác 3 kl 2 Vac V3 V31 9 Vác 4 kN...

A: I am attaching detailed solution image of this question.

Q: We have seen in theory that the car transfer function fits the format K . Find the values of paramet...

Q: For the network of Fig a. Find the mathematical expression for the voltage across the capacitor afte...

A: “Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for y...

Q: Determine the maximum number of lighting outlets for 15, 20, 25 and 30 circuit breake

A: Given Circuit breaker of 15 A,20 A,25 A and 30 A

Q: R

A: Given

Q: Given the following circuit, find Vud and VRI. VR VR, = 2V V pd €) 24 V 14 V R. d

Q: applications of a diode.

A: Diode- This is a unidirectional semiconductor device. It operates or works under a specified voltag...

Q: R1 A R4 150 80 R3 R2 V1 200 100 80Vpk 60HZ 30° L3 C2 20H =12µF C1 L2 R6 HH IC 12µF D 20H 10Ω R5 -10Ω...

Q: Draw four-variable Karnaugh Map and find all prime implicants, essential prime implicants. 2,Find s...

Q: Solve for ID (mA) in a JFET given the following: IDSS=11.8mA VGS=-1.55V VGSoff=-4.9V

Q: Describe Amplitude Modulator as one of an OTA applications the subject : Analogue Electroni...

A: Amplitude modulator: In this modulation the amplitude of carrier wave changes in proportion to the m...

Q: An impedance coil is connected in series with a fixed resistor, and a 120-V, 50-cycle Source is then...

Q: THE FORCED RESPONSE COMPONENT OF THE INDUCTOR CURRENT FOR THE CIRCUIT IN FIG. IS:

Q: Problem 3: For the system with the block diagram shown in Figure 3, assign conditions on control gai...

A: I am attaching detailed solution image of this question.

Q: fransmitter A has a power level of 1 mW, and transmitter B is 200 mw. Compare transmitter B to A usi...

Q: Find Vr2, Vr4, and Vr5 in the circuit shown. 10 V R1 1 kN + 5 V VAZ R3 R2 2.5 kN 1 kN R5 VAS |V, R4 ...

Q: 13.6 A 250 0 resistor is in series with an 80 mH inductor. This series combination is in parallel wi...

A: I am attaching detailed solution images of this question.

Q: find the area of shell selbm & = O-> a.910 T mz b.300 Ti mt C. 2001H m²

Q: Given x =2 Y=5 Z=2 Answer 1. What is the total resistance of the circuit 2. What is the total curren...

A: In this answer we will find the answers to the each of the following questions using different circu...

Q: 1. Describe the high frequency response and phase shift for BJT and FET transistors using Millers Th...

A: Millers theorem BJT a) Input RC circuit b) Output RC circuit FET a) Input RC circuit b) Output RC ...

Q: 4 A 100-mH inductor is connected in parallel to the series connection of a variable resi R and a 20-...

Q: Item #: For the circuit below, find the current I. j 62 ll HE -j22 j22 12 -j22 j42 24 Vac -j20 Figur...

Q: 1) What is meant by measurement? 2) What are the basic requirements of measurement? 3) State the two...

Q: Why do we need 220 V at 60 Hz in outlets? Why don’t we use DC in our transmission lines instead?

A: Transmission lines- Transmission lines are used to transfer electrical power from one place to anoth...

Q: 1 Ohm 2 Ohms 4 Ohms 4 Ohms ELECTONICS HU acov A07 H Ohms m

Q: Determine the maximum number of lighting outlets for 15, 20, 25 and 30 circuit breaker

Q: An impedance coil is connected in series with a fixed resistor, and a 120-V, 50-c Source is then imp...

Q: 1 Ok 2 Oh :4 Oks ELECTONICS Jacov

A: The given circuit diagram is shown below:

Q: 1. What will be the value of a in the following figure? らニ-9A iz= a A

Q: 6. Find the S-parameters of a circuit given below. 8.56 2 8.56 2 141.8Q

A: We need to find out S parameters for given T network.

Q: Compute the current in each of the resistors in the circuit below if R1 = 100Ω, R2 = 200Ω, R3 = 300Ω...

A: Apply Nodal at the node on the top. V-E1R1+V-E2R3+VR2=0 Substitute the value and solve for voltage a...

Q: An electric motor rated 1,200 W , 0.9 pf lagging is connected to a 220-V supply. Find the reactive p...

A: Reactive power = active power × tan(power factor angle). Given active power = 1200 Watts and power ...

Concept explainers

Analog to Digital Converters

The analog-to-digital converter (ADC) allows circuits controlled by microprocessors, Arduinos, Raspberry Pi, and various reasonable digital circuits to be connected to the real world. In the real world, analog signals have a continuous stream of information from a variety of sources and sensors capable of measuring sound, light, temperature, or movement, in addition to the many digital systems that interact with their environment by measuring analog signals from those transducers.

Question

I already posted this here but I'm disappointed with the bad handwriting of the one who answered it. It's so untidy and I don't understand anything.

Please help me answer these completely and neatly. Thank you!

A three stage amplifier is to have an overall noise temperature no greater than 7O K.
The overall gain of the amplifier is to be at least 45 dB. The amplifier is to be built by
adding a low-noise first stage to an existing two-stage amplifier that has the gains
and noise figures shown below. The stage number refer to locations in the new
amplifier.
Stage Power Gain Noise Figure
20 dB
3 dB
13
15 dB
6 dB
a. What is the minimum gain in decibels that the first stage can have?
b. Using the gain you calculated in part (a), calculate the maximum noise figure in
decibels that the first stage can have. Express answer with two decimal places.
c. Suppose the gain of the first stage could be increased by 3 dB without affecting its
noise figure. What would be the effect on the noise temperature of the complete
amplifier?

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

Step 2

Step 3

Step 4

Step 5

Step 6

Step 7

Step 8

Trending now

This is a popular solution!

Step by step

Solved in 8 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, electrical-engineering and related others by exploring similar questions and additional content below.

Similar questions

For an operational amplifier, the differential gain and the common mode gain is 5555 and 5 respectively. What will be the CMRR of the opamp? Can be opamp be called a good opamp based on CMRR?
please need correct answer and fast Q3) For an Operational Amplifier if CMRR = 140dB and Common mode gain ACM is 0.030, what will be the value of Open loop differential gain Aol? a) 21 b) 4.2 c) 300000 d) 30000
An amplifier is formed by cascading two operational-amplifier stages, as shown (a). (a) Replace each amplifier stage with its two-port representation. (b) Use the circuit model from part (a) to find the overall two-port representation (Av, Rin, Rout) for the complete twostageamplifier. (c) Draw the circuit of the two-port corresponding to the complete two-stage amplifier.
Show the connection of an LM124 quad op-amp as a four-stage amplifier gains of +20, -22, -39 and -25.Use a 500 k resistor for all stages. What output voltage results for an input of V1 = 100 V? i need the answer in 30 minutes please
Draw the circuit of 3 op-amp configuration of instrumentation amplifier andderive the gain equation. Consider all internal resistors to be equal.
An amplifier is formed by cascading three identical operational-amplifier stages, as shown . (a) Replace each op amp circuit with itstwo-port representation. (b) Use the circuit model from part (a) to find the overall two-port representation (Av, Rin, Rout) for the complete three-stageamplifier. (c) Draw the two-port circuit corresponding to the complete three-stage amplifier.
Table Q2 shows the datasheet comprising the parameters of a practicalop-amp. Please answer the following questions with reference to the data inTable Q2. Determine the full-power bandwidth for a 10-V output. Using the typical values from Table Q2, find the magnitude of thecommon-mode gain, Acm.
Design an inverting amplifier to provide a closed-loop voltage gain of Ay = -22 V/V. The maximum input voltage signal is 30 mV with a source resistance in the range of 1 kls R, < 3 kN. The variable source resistance should introduce a difference in the gain no more than a 2% of the gain factor. What is the range in output voltage?
solve a,b and c please. a. Define on-off ratio. Why series JFET has higher on-off ratio as compared to shunt JFET? b. Compare inverting and non-inverting amplifier? c. calculate the closed loop gain of the circuit diagram given below.
Design an amplifier with an overall gain Av = -15 where the input voltage vi has a source impedance (Ri) of 2kW and the amplifier has an input impedance of 4kW, VBE,on = 0.7V and β =200. The amplifier requires a maximum output voltage swing. Determine all resistor values, Ai and the maximum voltage swing.
Q4/A)- Show the connection of three combination op-amp stages using an LM348 IC to provide outputs that are 110, 1681, and 420 times larger than the input. Use a feedback resistor of Rf = 400 k? in all stages, while can use only (R= 40 k? for first stage), (R= 10 k? for second stage), and (R= 20 k? for third stage
I need the definitions of the following: •Open loop gain •Input resistance Ri •The output offset voltage (input offset voltage) •The output voltage swing (saturation voltage) •The bias current •The common mode rejection ratio CMRR Please, they can only be from the book "Franco, S. (2005). Design with Operational Amplifiers and Analogue Integrated Circuits.", "González, J. J. and Moreno, A. (2009). Applied Electronic Circuits with Amplifiers Operational", "Carter, B. and Mancini, R. (2009). Op Amps for Everyone" or also "Neamen, D. (2010). Microelectronics: Circuit Analysis and Design" Any of those please