approach’‚ John Wiley & Sons (2001). 1. ECE 426 MICROWAVE ENGINEERING AND ANTENNAS LABORATORY Credits 2 Periods Theory Tutorial Lab 4 Exam Hrs. Sessional Marks 50 Exam Marks 50 Total Marks 100 1) Measurement of VSWR 2) V-I Characteristics of GUNN Diode 3) Measurement of Coupling Factor and Directivity of a 4-Port directional coupler 4) Measurement of Microwave frequency 5) Reflex Klystron Characteristics 6) Radiation Pattern of Horn Antenna 7) Fiber Optic Analog Link 8) Fiber Optic Digital Link Other four
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multi carrier FDMA (MC-FDMA)‚ inter leaved FDMA advance antennas. Technical challenge face for this requirement is increase in cost which cause commercial success of 4G impossible. In case to gain high capacity‚ cost increase by using higher frequency band in which result coverage area per base station reduce. In order to maintain the coverage area‚ must increase the number of base station. Modulation and demodulation technique‚ adaptive antenna‚ low noise receivers are circuit technologies that are
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to show France’s industrial power to the world. It is located at the Champ de Mars in the 7th arrondissement (Midwest Paris). The French often call it ‘La Dame de the Fer’ (The Iron Lady). It is 1.063 ft (324m) tall including the antenna at the top‚ without the antenna it is just 984 ft (300m). It’s construction costed 7‚799‚401.31 French gold francs in 1889. Eiffel Tower was the tallest man made building in the world before the Chrysler Building was built in New York in 1930. Eiffel Tower was
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Problem Solving ❏ ❏ ❏ ❏ ❏ ❏ Intellectual Staffs Communication Engineers Antennas Research and Development Facilities / Programs Human Resources Physical Resources Cost Structure ❏ ❏ ❏ ❏ ❏ ❏ ❏ Google Marketing Department Value Propositions ❏ ❏ ❏ Key Resources Advertising and Promotion 15% Government Co-operation Cost 20% Research and Development (Innovations) 40% Human Resources 15 % Maintenance Cost 10% 500 Antennas Installment Cost in a particular region (150000 baht / one) Total investment
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consists of "nodes" – from a few to several hundreds or even thousands‚ where each node is connected to one (or sometimes several) sensor. Each such sensor network node has typically several parts: a radio transceiver with an internal antenna or connection to an external antenna‚ a microcontroller‚ an electronic circuit for interfacing with the sensors and an energy source‚ usually a battery or an embedded form of energy harvesting. A sensor node might vary in size from that of a shoebox down to the size
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INTRODUCTION In the past‚ doctors have been diagnosing problems associated with the small intestine-such as cancer‚ ulcers and polyps-by using X-rays or exploratory surgery. These techniques are both unpleasant and painful‚ as is surgery. The advancement of our technology today has lead to its effective use and application to the medical field. One effective and purposeful application of the advancement of technology is the process of endoscopy‚ which is used to diagnose and examine the conditions
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Resistor R3 1 10k 1/8W Resistor 10K 1/4W Resistor R4 1 100k 1/8W Resistor 100K 1/4W Resistor Q1‚ Q2 2 2N2222A NPN Transistor 2N3904‚ NTE123A L1‚ L2 2 5 Turn Air Core Coil MIC 1 Electret Microphone MISC 1 9V Battery Snap‚ PC Board‚ Wire For Antenna • L1 and L2 are 5 turns of 28 AWG enamel coated magnet wire wound with a inside diameter of about 4mm. The inside of a ballpoint pen works well (the plastic tube that holds the ink). Remove the form after winding then install the coil on
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technology to add to the watch. The RFID (Radio Frequency Identification) technology is the piece of small antenna as if the small paper which is stick with the product. The sensor duty is detect the product that stick with the small antenna and send the data to the computer to record. Actually the technology can apply. The old duty of RFID is usually use in logistic or warehouse but we move the small antenna to the watch. Sensor which is detect the RFID in the cashier or vending machine like the credit card
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carrier is to be modulated to 90% level. Determine the total transmitted power. 4. An AM broadcast station operates at its maximum allowed total output power of 50 kW and at 95% modulation. How much of its transmitted power (sidebands)? 5. The antenna current of an AM transmitter is 12 A when unmodulated but increases to 13 A when modulated. Calculate the percent modulation. 6. An intelligence signal is amplified by a 70% efficient amplifier before being combined with a 10 kW carrier to generate
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International Journal of Scientific & Engineering Research Volume 4‚ Issue 2‚ February-2013 ISSN 2229-5518 1 RFID-Based Students Attendance Management System Arulogun O. T.‚ Olatunbosun‚ A.‚ Fakolujo O. A.‚ and Olaniyi‚ O. M. Abstract In recent years‚ there have been rise in the number of applications based on Radio Frequency Identification (RFID) systems and have been successfully applied to different areas as diverse as transportation‚ health-care‚ agriculture‚ and hospitality industry
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