This website uses cookies to ensure you have the best experience.

# Tri Band Wilkinson Power Divider Using A Three Section Transmission Line Transformer

937 words - 4 pages

Prerana Chowdary Yerneni

Review paper summary: The main objective of this paper was to design a triple band equal split power divider circuit.
Introduction: With the advancement in technologies, concentrating on transceivers is increasing. Transceivers operate at various frequencies. The author uses Wilkinson power divider (using three section transmission line transformer) which operates at three different arbitrary frequencies simultaneously to generate the required specifications. This condition of using three different frequencies on contrary to using dual frequencies makes this /or made this paper publishable. This circuit operates in the frequency range 900 MHz - 2.3 GHz.
Design ...view middle of the document...

The circuit can be created using microstrip lines, fabricated on Taconic substrate. The lengths and the widths of the microstrip lines are found using the TX Tool in AWR, for this circuit the measured values are presented in table 1. All the values are measured in mm. Loss tangent is considered to be 0.002.
Conventional circuit: Wilkinson power divider is the basis convention circuit. For equal power split, the circuit that can be used is presented in figure (2). The value of impedances of the quaterwave transmission line is sqrt (Z0) and resistance is 2(Z0), when z0 is the characteristic impedance. The parameter values and corresponding lengths and widths are given in table 2.
ZO Z01 Z02 L W R
50Ω 70.7Ω 70.7Ω 46.4759 1.93465 100Ω

The output of the conventional circuit is provided in figure 4. From the plot we can say that at the center frequency return loss ls11l is very low, and power is split equally between both the output ports.

Novel Design: In the innovative design we implement an equal split 4 way power divider. To the same power divider, we yet again add a 3 port Wilkinson to each of the output ports to make it an output four port .This leads to a circuit with one input and four output ports. The basic block diagram of this implementation is shown in figure (i). The proposed circuit is simulated and the corresponding results are shown in figure 6.

The results: The circuit presented in the paper has lS21l and lS31l to be greater than 3.4 dB while in the innovative design we generated ls21l, ls31l, ls41l and ls51l are greater than 6.5db.This means that while in the paper presented the power is equally split between two ports so about 50 % of power is sent through each of the output ports while in the proposed...

## Find Another Essay On Tri-Band Wilkinson Power Divider Using a Three-Section Transmission-Line Transformer

### Pantomime, one robots search for rhythm. a children's story parallel to Herman Hess' Sidhartha using original charaters and plot line

1184 words - 5 pages on his journey.'I'm going to find my inner piece.' thought the determined robot.He couldn't bear another day of watching the others twist, tango,and mash potato.Pantomime first came upon a large building just a few miles awayfrom the factory. "Cal's Line Dancing Studio. Fun for the wholefamily." read the sign. Curious, Pantomime entered the studio andwas at once thrilled by what he saw. Moms and dads and childrenand grandparents all dressed in

### Using Chapter thirty-three of Pride and Prejudice by Jane Austen, as a starting point, discuss how important the relationship between Jane and Bingley is to the novel as a whole

1076 words - 4 pages Within the novel, Austen has used Jane and Mr. Bingley as the subplot to the book. Austen shows how Jane and Mr. Bingley need to get together before Elizabeth and Darcy could.In chapter thirty three we see how Lizzy is speaking to Colonel Fitzwilliam. We see how he discusses with her how Mr. Darcy is in fact heroic because he saved a close friend from a bad marriage."...he congratulated himself on having lately saved a friend fromthe

### Describing society using three films, Requiem for a dream, fight club, and American Psycho as examples

1772 words - 7 pages fault for many of the poor self-images out there that change a person's perceptions of him or herself. Like the disorders anorexia and bulimia, both mental illnesses that make the individual think that they are fat, when in reality they are nearly dying from being so skinny. Americans' perceptions of how women should look are disturbing; is it more important for a girl to be skinny or smart? I'm gladyou watched the three movies I suggested to you

### The Relevance of Gender In Society: A research paper on Virginia Woolf's views on gender roles using three of her books, "To the Lighthouse", "Mrs. Dalloway", and "A Room of One's Own"

1976 words - 8 pages ,http://www.brainyquote.com/quotes/authors/v/virginia_woolf.html). Through her characters, Woolf presented a menagerie of women who displayed such raw emotions that they seemed real. These characters dealt with gender in different ways. Some embraced their role as a woman in society while others shunned society's idea of women. No matter how she was presenting her characters, Woolf loved using them to explore the complexity she found within

### Short Circuit Calculations: Basic Calculations and Transformer Sizing

1865 words - 7 pages areavailable within the electrical power transmission industry. [1]The following calculations will determine the extra kVA capacity required for a threephase transformer that is used to feed a single three phase motor that is started withfull voltage applied to its terminals, or, "across-the-line."Two transformers will be discussed, the first having an unlimited short circuit kVAcapacity available at its primary terminals, and the second having a

### aqa somehingn2jjjj2j2jj jjjj2jjjj - uhc - aqa something

4117 words - 17 pages the potential difference in the secondary coil compared to the primary coil but it will also decrease the current. This happens as the electrical power on both primary and secondary coils remains the same so: However, this only works if the transformer is 100% efficient so it is classed as an ideal case. What are the drawbacks of using transformers? Calculate the current drawn from the input supply to provide a particular power output. Explain

### Design and Evaluation of DSP Based Differential Relay of Power Transformer

2409 words - 10 pages algorithm. The simulations presented in this paper is performed on a step-down three-phase power transformer 250 MVA rated power; the primary and the secondary line to line voltages were 230kV \ 63 kV respectively. To prove the effectiveness of (the proposed algorithm) developed relay, we have simulated the behavior of the relay versus four essential cases: - Behavior of the relay versus the magnetizing inrush current. - Behavior of the relay

### Single Phase Transformers

780 words - 4 pages 1.0 Definition of Transformer: A Transformer is a static electric device that transfers electrical power from the primary winding to the secondary winding using electromagnetic induction. Transformers can raise or lower the voltage with conforming drop or rise in current. Transformers work on the value of mutual induction. When two coils are positioned so that the flux produced by one coil links to the other coil, then by fluctuating

### Evolutionary Programming Technique for Voltage Control

3081 words - 13 pages Evolutionary Programming (EP), the MATLAB software is needed in order to implement and develop the Evolutionary Programming (EP) technique. A comparative study between the result of optimal reactive power scheduling and optimal transformer tap changer setting is also conducted since both optimal reactive power scheduling and transformer tap changer setting are implemented using Evolutionary Programming (EP) separately. Several contingencies in power

### How to Wire a Doorbell

1737 words - 7 pages Anyone can wire a doorbell if he follows these steps and safety precautions. Modern day doorbells use transformers to supply power to the circuit. One can wire up a doorbell if they use safety precautions, follow instructions,and the proper materials to wire it with. Take safety precautions by using the correct tools which includes screwdrivers,wire strippers,electrical contact cleaner, fine sandpaper, rubbing alcohol, and a cotton swab or old

### Transformer Oil Quality/Oil Filtration

1788 words - 7 pages contaminate the new oil. The water contained in the paper is not significantly affected by retro filling, and once the transformer is on line and up to operating temperature, the water moves back into the oil. Draining a substation transformer and filling it with clean oil does little to remove the sludge adhering to the radiators, tank walls, core, and coil. Some companies address this problem with subsequent oil changes to remove these

## Similar Essays

### Distance Protection Algorithm For Three Terminal Transmission Lines Using Local Measurement

1420 words - 6 pages Power System Protection, pp. 395–398, Apr. 2001. [11] S.M. Brahma, “Fault Location scheme for a multi-terminal transmission line using synchronized voltage measurements”, IEEE Trans. on Power Delivery, vol. 20, no. 2, pp. 1325–1331, Apr. 2005. [12] J. Izykowski, R. Molag, E. Rosolowski and M.M. Saha, “Fault location in three-terminal line with use of limited measurements,” CD Proceedings of Power Tech, St. Petersburg, June 2005. [13] J

### Novel Reduced Switches Single Phase To Three Phase On Line Uninterruptible Power Supply

2829 words - 11 pages Abstract—This paper describes design considerations and performance analysis of a novel on-line single-phase to three-phase uninterruptible power supply (UPS) with reduced number of switches. The proposed topology uses only 5 active switches reducing the cost of the system compared to the traditional 10-switch topologies. The proposed UPS consists of a single-phase rectifier/charger, a two-leg/three-phase inverter connected to load, battery bank

### This Paper Is All About Jitter And Wander On A Transmission Line. It Contrasts The Difference Of Jitter And Wander

541 words - 2 pages reason for wander could be if the span that was run to the customer was too far away from the central office without a repeater placed in the circuit, wander can occur. Some more reasons for wander include propagation delays and temperature changes.In conclusion, both wander and jitter are two types of errors that can severely impair a transmission line. Wander and or jitter on a transmission line could look/sound like pops or clicks on a voice

### A New Approach To Transmission Power Control For Multihop And Single Hop Ws Ns

1539 words - 6 pages is repeated for other lower power level values and more intermediate nodes are strategically placed between the source and the sink, thus increasing the number of hops between them. The range between nodes, and transmission power levels, can be approximated using propagation models, whereby P_{r} is the node constant receiver sensitivity (-94dBm). This is a basic topology but it is quite sufficient to show the basic characteristics