+1-415-315-9853

info@mywordsolution.com

## Engineering

 Civil Engineering Chemical Engineering Electrical & Electronics Mechanical Engineering Computer Engineering Engineering Mathematics MATLAB Other Engineering Digital Electronics Biochemical & Biotechnology

Q1. In your own words, describe the following: a) affective aperture, b) array factor, c) Friis equation, d)Antenna H-plane and E-plane, e) radiation resistance

Q2. An antenna in free-space driven by current Io radiates far-field E as:

, for 0 ≤Φ ≤ π, here C = constant

= 0 everywhere else

a) Compute the power density, b) Compute the total radiated power, c) Compute the gain and directivity (D) of the antenna

Q3. Four Hertzian dipoles (oriented in the z-dir.) are placed on an x-y plane with spacing (d=λo/2) between them as shown in figure.

a) Derive the array factor for this setup

b) Determine the total far-field

Q4. A 90° perfectly conducting corner cube reflector has a shortdipole (oriented in the z-direction) placed at a distance d from the vertex. The antenna is fed by current Io.
a) Find the equivalent array of dipoles by determining a system of images

b) Derive the array factor

c) Determine the total far-field (E)

d) For a distance d=0.5λ, find out the directivity on y-axis

Q5. Design a rectangular patch antenna (substrate: εr = 3, tan-δ=0, h = 0.75 mm) operating at f0 = 2.5 GHz
a) Determine the dimensions W and L of the antenna, assume w/λo << 1

b) The antenna is to be matched to 100Ω using recessed feeding line. Design the recessed length (L1) to match the antenna to the feed line.

c) This antenna design is now used in an array of (2X1, side by side placement).
C1. In which direction does the main radiation beam points if the antennas are symmetrically fed.
C2. In which direction does the main radiation beam points if the antennas are fed with different length transmission lines that gives rise to a phase difference of 0.75 between them.

Other Engineering, Engineering

• Category:- Other Engineering
• Reference No.:- M92036

Have any Question?

## Related Questions in Other Engineering

### Technical comminucations englpart 1take-away please respond

Technical Comminucations ENGL Part 1 "Take-Away" Please respond to the following: Imagine it is 10 years from today. Identify two things you learned in this course that you couldn't have imagined being successful without ...

### Assignment1 discuss symmetrical conditions in fourier

ASSIGNMENT 1. Discuss symmetrical conditions in Fourier series 2. Derive conversion formulae among different types of Fourier Series 3. State and prove any six properties of Fourier transform. 4. State and prove any four ...

### Microcomputers lab exploring pwmobjectives to gain a better

Microcomputers Lab: Exploring PWM Objectives: To gain a better understanding of Pulse Width Modulation. What you will need: Arduino UNO, Analog Discovery Kit (ADK), LU EE Component Kit, jump wires, a computer with instal ...

### Design a voltage-divider biased common source amplifier

Design a voltage-divider biased common source amplifier with no bypass(JFET) Design a voltage-divider biased common source amplifier with no bypass to the following specifications: Av (overall) = -3, Rsrc = 30 kΩ, Rin = ...

### Introduction to signal analysis project music

Introduction to Signal Analysis Project: Music Synthesis Project Definition: The objective of this project is to synthesize musical signals. You will generate harmonic tones and use them to perform well-known melodies. M ...

### 1 simplify the expressions using boolean algebra and its

1. Simplify the expressions using Boolean algebra and its identities: X'Y + XYZ' + Y' + XZ (Y+Y') = 1 2. The academic director wants to select students in Sydney Study Center to give them Gala Dinner Award. The recipient ...

### Homework consider a renewal process let x be the

Homework Consider a renewal process. Let X be the interrenewal times; and let I and R be the length of an interval interrupted at random and its remainder, respectively. The following BASIC simulation calculates the aver ...

### History of architecture and urbanismpick five questions

History of Architecture and Urbanism PICK FIVE QUESTIONS TOTAL TO BE ANSWERED: Each answer must be 150 to 400 words. To be typed, not hand­written. Email your final exam to your discussion leader. 1. The concept of "mode ...

### Diode circuits1 the 6v zener diode below has zero zener

Diode Circuits 1. The 6V zener diode below has zero Zener resistance and a knee current of 5mA.The minimum value of R, so that the voltage across it does not fall below 6V is 2. A zener diode in the circuit shown in belo ...

### Problem 1find the maximum likelihood ml test for a single

Problem 1. Find the Maximum Likelihood (ML) test for a single observation x(0) to distinguish between H 0 and H 1 if H 0 : P x (0)(x(0)) = 1/2exp (-|x(0)|) H 1 : P x (0)(x(0)) = 1/2exp (-|x(0) - A|) when A > 0. Find the ...

• 13,132 Experts

## Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

### Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

### Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

### Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

### Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro

### Describe what you learned about the impact of economic

Describe what you learned about the impact of economic, social, and demographic trends affecting the US labor environmen