astronomy

Mohamed Sanad

Mohamed Sanad is a astronomy topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Mohamed Sanad rather than just read about it. In short: Mohamed Sanad (Arabic: محمد سند) is an Egyptian antenna scientist and professor in the Faculty of Engineering, Cairo University. He made contributions to antennas, and holds sixteen patents in the area.

Key takeaways

Mohamed Sanad belongs to astronomy; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Mohamed Sanad to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Mohamed Sanad from memory before moving on to harder problems.

Reference excerpt

Mohamed Sanad (Arabic: محمد سند) is an Egyptian antenna scientist and professor in the Faculty of Engineering, Cairo University. He made contributions to antennas, and holds sixteen patents in the area. The most recent of which is "Design of single and multi-band PIFA" (planar inverted-F antenna). He has also published thirty peer-reviewed papers or conference proceedings. The most recent are three papers at the IEEE Antennas and Propagation Society International Symposium (APSURSI), 2010, IEEE He also worked with Nokia and Motorola on mobile phones.

IPA Prize Winning Project A low-cost, lightweight, low wind-load, foldable/deployable, multi-broadband base station antenna has been developed using dual parabolic cylindrical reflectors with novel small size broadband resonant feeds invented by the applicant. The new base station antenna has the following 8 important advantages over the existing ones in wireless applications:

One base station can cover all wireless applications at different frequency bands including WiMax, digital TV, CDMA, GSM, etc. The station is foldable/deployable and can thus be shipped and stored in a very compact form It is very easy to assemble and disassemble It has a low wind load It is light It can stand on the ground without mounting towers It is low-cost and It can generate beams of arbitrary angles in the horizontal and vertical planes. Sanad received the Innovation Prize for Africa in 2012.

References

Worked examples

Example 1 — a first encounter with Mohamed Sanad

Start with the simplest possible case. Write down what Mohamed Sanad claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In astronomy, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Mohamed Sanad before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Mohamed Sanad ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Mohamed Sanad

In research: Mohamed Sanad appears in astronomy research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Mohamed Sanad in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Mohamed Sanad is common in secondary-school and first-year university syllabi. It links to neighbouring topics Academic staff of Cairo University, African scientist stubs, Egyptian scientist stubs, so understanding it makes those chapters shorter.
In everyday life: Look for Mohamed Sanad outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Mohamed Sanad in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Mohamed Sanad means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Mohamed Sanad out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Mohamed Sanad in simple terms?

Why does Mohamed Sanad matter?

Because it connects several astronomy ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Mohamed Sanad?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Mohamed Sanad.