PPT-Periodic Structures and its Applications in Antennas

Debabrata Kumar Karmokar Student ID 42660130 Principal Supervisor Prof Karu Esselle Associate Supervisor Prof Michael Heimlich Course COMP901 Academic Presentation and Writing Skills . By: James VE3BUX. Definition. The Modern Dictionary of Electronics defines an antenna as:. That portion, usually wires or rods, of a radio transmitter or receiver station used for radiating waves into or receiving them from space. It changes electrical currents into electromagnetic waves, and vice versa.. Identifying and writing loose and periodic sentences. A sentence in which a main or independent clause comes first, followed by further grammatical units, both phrases and dependent clauses. A loose sentence makes sense and will stand alone as a sentence even if brought to a close before the period.. Michael Bailey & Marlena . Artis. Atomic Mass. Symbol. (Uranium). Atomic Number. The atomic number is the number of protons an atom has. The atomic mass is the atom’s mass often measured in AMUs (Atomic mass units) which weighs approximately 1/12 the mass of a carbon-12 atom. Baluns. A . balun. . is a device to match a . balanced . antenna . to unbalanced . transmission line such as coax. Used e.g. to connect a dipole antenna to a 50 ohm coaxial cable, where it would be installed . In this presentation you will…. Learn the definitions of Loose, Periodic, and Balanced Sentences. Learn the rhetorical purpose and function of Loose, Periodic, and Balanced Sentences. See examples of Loose, Periodic, and Balanced Sentences. We will see . main families of . antenna . used to create a radiated radio wave:. wire antennas (dipole, monopole Yagi). . slot . antennas (half or quarter wave). patch antennas (planar). aperture antennas (horn). Methods to Making Loose and Periodic Sentences. Preposing. or Postposing the adverbial clause. Preposing. or Postposing the adverbial phrase. Preposing. . or . Postposing the participial phrase. Preposing. Periodic Sentence. main clause postponed until the end of the . sentence. Example: . "And though I have the gift of prophecy, and understand all mysteries, and all knowledge; and though I have all faith, so that I could remove mountains, and have not charity, I am nothing. What is an Antenna?. An electronic device that is used either for radiating electromagnetic energy into space or for collecting electromagnetic energy for space. Any wire carrying AC current will radiate electromagnetic waves and an electromagnetic wave will induce a voltage in a length of wire. for Small and Large Lots. Small antennas. High performance antennas. Quantitative performance evaluation. Frank Donovan. W3LPL. . Dayton 2016. Why Receiving Antennas?. Much better performance than most transmitting antennas. Basic Sentence. Abraham Lincoln. wept.. SUBJECT VERB . Loose Sentence. A basic sentence with the . details added immediately at the end. of the basic sentence. Abraham Lincoln wept, . Both antennas were used for high power and steady-state operation similar to other antennas without . any problems. FIP/P5-. 3. T. Seki. Antenna . without Faraday shield. (. FS-less antenna. ). F. ield-. Section 6.1. . Development of the Modern Periodic Table. Section 6.2. . Classification of the Elements. Section 6.3. . Periodic Trends. Exit. Click a hyperlink or folder tab to view the corresponding slides.. ECE 3317. Applied Electromagnetic Waves. Prof. David R. Jackson. Fall 2023. . Introduction to Antennas. An antenna is a device that is used to transmit and/or receive an electromagnetic wave.. Examples: .