7.3 A Yagi aerial consists of a dipole of 73 + j0 22 imped- ance and a parasitic element of 81 +j108 2 impedance. The mutual impedance between the two elements is 40 - j30 2. Calculate the ratio of the powers radiated in the directions dipole to parasitic and parasitic to dipole. Hence state whether the parasitic element is a reflector or a director.

Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
icon
Related questions
icon
Concept explainers
Question
7.3 A Yagi aerial consists of a dipole of 73 + j0 22 imped-
ance and a parasitic element of 81 +j108 22 impedance. The
mutual impedance between the two elements is 40
-j30 n.
Calculate the ratio of the powers radiated in the directions
dipole to parasitic and parasitic to dipole. Hence state whether
the parasitic element is a reflector or a director.
74 An aerial orrau concioto f three)
heights of the aerials if the k-factor is 0.65 and the
wave is to clear the sea by a distance equal to 0.57
the first Fresnel zone. If a second aerial is fitted to give
diversity, calculate its height also.
8.2 An ionospheric layer has a maximum electron =
of 1.6 x 10¹¹ electrons/m³ and it is at a virtual he
Transcribed Image Text:7.3 A Yagi aerial consists of a dipole of 73 + j0 22 imped- ance and a parasitic element of 81 +j108 22 impedance. The mutual impedance between the two elements is 40 -j30 n. Calculate the ratio of the powers radiated in the directions dipole to parasitic and parasitic to dipole. Hence state whether the parasitic element is a reflector or a director. 74 An aerial orrau concioto f three) heights of the aerials if the k-factor is 0.65 and the wave is to clear the sea by a distance equal to 0.57 the first Fresnel zone. If a second aerial is fitted to give diversity, calculate its height also. 8.2 An ionospheric layer has a maximum electron = of 1.6 x 10¹¹ electrons/m³ and it is at a virtual he
Expert Solution
steps

Step by step

Solved in 3 steps with 2 images

Blurred answer
Knowledge Booster
Antenna Characteristics
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
Recommended textbooks for you
Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
Electrical Engineering
ISBN:
9780133923605
Author:
Robert L. Boylestad
Publisher:
PEARSON
Delmar's Standard Textbook Of Electricity
Delmar's Standard Textbook Of Electricity
Electrical Engineering
ISBN:
9781337900348
Author:
Stephen L. Herman
Publisher:
Cengage Learning
Programmable Logic Controllers
Programmable Logic Controllers
Electrical Engineering
ISBN:
9780073373843
Author:
Frank D. Petruzella
Publisher:
McGraw-Hill Education
Fundamentals of Electric Circuits
Fundamentals of Electric Circuits
Electrical Engineering
ISBN:
9780078028229
Author:
Charles K Alexander, Matthew Sadiku
Publisher:
McGraw-Hill Education
Electric Circuits. (11th Edition)
Electric Circuits. (11th Edition)
Electrical Engineering
ISBN:
9780134746968
Author:
James W. Nilsson, Susan Riedel
Publisher:
PEARSON
Engineering Electromagnetics
Engineering Electromagnetics
Electrical Engineering
ISBN:
9780078028151
Author:
Hayt, William H. (william Hart), Jr, BUCK, John A.
Publisher:
Mcgraw-hill Education,