**Antenna Theory: 4400:453 and
4400:553**

Fall 2018

**Texts:** Constantine A. Balanis,
Antenna Theory, Wiley, (optional – 1^{st} or 2^{nd}
edition).

N. Ida, Engineering
Electromagnetics, 3^{rd} Edition, 2015, Springer Verlag.
(EE)

**Time: **TuTh 1:15
– 2:30 PM

**Room: **Schrank Hall
South 145

Dr. N. Ida (ASEC N252), e-mail: ida@uakron.edu, TEL: 330-972-6525

**Outline:**

1. Introduction: types and purpose of antennas.

2. The Hertzian dipole (Chapter 4, section 2 Balanis + Chapter 18EE)

3. Antenna parameters and properties (Chapter 2 Balanis + Chapter 18EE).

4. Linear antennas (Chapter 4 Balanis + Chapter 18EE).

5. Loop Antennas (Chapter 5 Balanis + Chapter 18EE).

6. Antenna arrays (Chapter 6EE + Chapter 18EE).

7. Antenna Synthesis (Chapter 7 Balanis)

8. Radiating systems (Chapter 3 Balanis+ Chapter 18EE)

9. The method of moments (Chapter 8 (Balanis) + Chapter 6EE).

10. Numerical methods for wire antenna design (Chapter 8 (Balanis)).

**Note 1: **The first part of the course is
based almost entirely on Chapter 18 of your electromagnetics book (marked as EE
in the outline above). The book by Balanis will be
used for some homework assignments and for sections 9 and 10 of the outline.

**Note 2:** I assume that you still have
your Electromagnetics book. If not, let me know and I will supply you with a
copy of Chapters 18 and 6. The book by Balanis is
optional. It is a very good book and if you can spare the money, I recommend
you buy it. However it is not essential and those sections that are important
will be photocopied and distributed (mostly Homework problems and parts of
Chapters 3, 7 and 8).

**Grading policy:**

There will be two midterm exams, homework assignments, a computer project and an optional final exam as follows:

**Option A:**

1st midterm: 20% (Thursday, October 4, Tentative)

2nd midterm 20% (Tuesday, November 20, Firm – See Note 2 below)-

Computer project 20%

Final exam 30%

Homework 10%

You may choose to take the final exam. If you do not, your grade will be calculated as follows:

**Option B:**

1st midterm: 30%

2nd midterm 30%

Computer project 30%

Homework 10%

**Notes: **

**1. **The final exam will be given at the
scheduled time. It is your choice to take it or not. If you do, your grade is
calculated based on **Option A**. If you
do not take the final exam, your grade is calculated based on **Option B**. There is no need to tell me
of your choice but you are welcome to discuss it with me. Also, I will use the
formula that gives you the best grade. Therefore, unless you are satisfied with
the preliminary grade, you should take the final. The higher grade of the two
options will be assigned.

**2.** The third exam is firm. I will be
willing to move it back to any day that same week but will not move it past the
Thanksgiving week.

**3.** Before each exam, I will make
available sample exams. These will be posted on my web site - http://ee.ascs3.uakron.edu/ida/
under the heading Antenna Theory, for downloading. The number of exams may vary
but usually there will be two exams with solutions and one without solutions.
The purpose of this third exam is for you to try on your own.

**Homework:** There
will be 5-6 homework assignments during the Semester and a final ÒprojectÓ.
Normally you will have two weeks to do the homework and about 1 month for the
project. More will be said on the project during the semester.

**Office hours: **Any
time of day between 7:00 AM and 6:00 PM. Please feel
free to see me anytime. There will be instances in which I will be busy with
other activities. In such cases I ask that you either wait or see me at other
times. Also, if you are not on campus, call me to ensure I am available. I also
have set office hours on Monday Wednesday and Friday, 9-11 AM. I do have a class at 11:00 so please come
early enough.

**Software:** If you
have not done so yet, I recommend you download the software ÒElectromagnetic
SimulationsÓ from my web page. The part on waves will be useful in
understanding some issues on antennas. The software is written in Matlab.

Details:

In the following:

EE – Enegineering Electromagnetics, Ida

CB – Antenna Theory, Constantin Balanis

MS – Numerical Techniques in Electromagnetics, Mathew Sadiku – I will provide the required material.

Lecture 1: Introduction, EE

Lecture 2: Electric and magnetic fields of the dipole – EE

Lecture 3: Near and far fields of the dipole – EE

Lecture 4: Radiated power density, power and radiation resistance – EE

Lecture 5: Radiation patterns, radiation intensity – EE

Lecture 6: Radiation intensity, directivity, maximum directivity, efficiency – EE

Lecture 7: Gain, magnetic dipole (loop) – EE

Lecture 8: Magnetic dipole, near and far fields, Table 18.1 – EE

Lecture 9: Arbitrary long antenna – EE

Lecture 10: Arbitrary long antenna – EE

Lecture 11: l/2 antenna, 3 l /2 antenna, l antenna – EE

Lecture 12: Examples, monopoles, reflection antennas, intro to arrays – EE

Lecture 13: Antenna arrays, 2 element array – EE

Lecture 14: 2-element array – EE

Lecture 15: 2-element array, n-element array – EE

Lecture 16: n-element array – EE

Lecture 17: n-element array, examples, reciprocity and receiving antennas – EE

Lecture 18: Effective area, Friis formula – Pages EE

Lecture 19: Friis formula, examples, intro to Radar – EE

Lecture 20: Radar, examples, intro to numerical solution and MoM – EE,

Lecture 21: Method of moments for electrostatics – EE – Chapter 6

Lecture 22: Method of moments – examples – EE, CB Pages 433 – 442

Lecture 23: PocklingtonÕs equation CB Pages 442 – 446

Lecture 24: PocklingtonÕs equation, HallenÕs equation CB Pages 443 – 447

Lecture 25: HallenÕs equation CB Pages 446 – 447, MS Pages 350 – 366

Lecture 26: Source modeling – Gap and frill generators CB Pages 447 – 451

Lecture 27: Source modeling – Frill generator CB Pages 447 – 451

Lecture 28: Method of Moments - CB Pages 450 – 458, MS Pages 350 – 366

Lecture 29: Antenna synthesis – Introduction CB Pages 385 – 388

Lecture 30: Schelkunoff method – CB Pages 385 – 392

Lecture 31: Fourier transform method – continuous – CB Pages 393 – 396

Lecture 32: Fourier transform method – linear arrays – CB Pages 396 – 399

Lecture 33: Woodward-Lawson method – Line source – CB Pages 399 – 404

Lecture 34: Woodward-Lawson method – Linear arrays – CB Pages 404 – 406

Lecture 35: Vector potentials – CB Pages 133 – 139

Lecture 36: Radiation integrals – CB Pages 139 – 146

Lecture 37: Aperture antenna – introduction – CB Pages 653 – 657

Lecture 38: Aperture antenna – Examples – CB Pages 657 – 660

Lecture 39: Radiation equations – CB Pages 660 – 663

Lecture 40: Radiation equations (cont.) – CB Pages 660 – 663

Lecture 41: Rectangular Apertures – CB Pages 663 – 665

Lecture 42: Rectangular Apertures – Uniform distribution – CB Pages 665 – 668

Lecture 43: Patch antennas – analysis – CB Pages 816 – 843

Lecture 44: Other antennas – Horns – CB Pages 883 – 893