comparatively higher frequencies allow broad and high , and antenna sizes are smaller than at lower frequencies because antenna size is inversely proportional to transmitted frequency. Microwaves are used in spacecraft communication, and much of the world's data, TV, and telephone communications are transmitted long distances by microwaves between ground stations and . Microwaves are also employed in and in technology. What is insertion loss? What is meant by attenuation? Mention the different types of attenuators. Why are attenuators used? List the applications of the attenuator. Differentiate fixed attenuator from variable attenuator. What is the difference between an attenuator and an amplifier? Write the S matrix for an attenuator. What is Uniline? Why is an isolator used in a microwave bench? What are the types of ferrite isolators? What is Faraday rotation? How the S - parameter of a microwave circuit measured? Expt. No. 9 SCATTERING PARAMETERS OF ISOLATOR AND CIRCULATOR Aim: To study the characteristics of an isolator and circulators and measure the insertion loss and isolation of Circulator Equipment Required: Microwave source Klystron tube, Isolator, Frequency meter, Variable attenuator, Slotted line, Tunable probe, Detector mount, Matched termination, Fixed attenuator, Variable attenuator, Cooling fan, Isolator, BNC - BNC cable, VSWR or CRO, Klystron power supply & Klystron mount Theory:
comparatively higher frequencies allow broad and high , and antenna sizes are smaller than at lower frequencies because antenna size is inversely proportional to transmitted frequency. Microwaves are used in spacecraft communication, and much of the world's data, TV, and telephone communications are transmitted long distances by microwaves between ground stations and . Microwaves are also employed in and in technology. What is insertion loss? What is meant by attenuation? Mention the different types of attenuators. Why are attenuators used? List the applications of the attenuator. Differentiate fixed attenuator from variable attenuator. What is the difference between an attenuator and an amplifier? Write the S matrix for an attenuator. What is Uniline? Why is an isolator used in a microwave bench? What are the types of ferrite isolators? What is Faraday rotation? How the S - parameter of a microwave circuit measured? Expt. No. 9 SCATTERING PARAMETERS OF ISOLATOR AND CIRCULATOR Aim: To study the characteristics of an isolator and circulators and measure the insertion loss and isolation of Circulator Equipment Required: Microwave source Klystron tube, Isolator, Frequency meter, Variable attenuator, Slotted line, Tunable probe, Detector mount, Matched termination, Fixed attenuator, Variable attenuator, Cooling fan, Isolator, BNC - BNC cable, VSWR or CRO, Klystron power supply & Klystron mount Theory: