This set of Antennas Multiple Choice Questions & Answers (MCQs) focuses on “Polarization Mismatch”. 1. What is the polarization loss factor due to mismatch if the two linear polarized antennas are rotated by an angle ∅? a) tan∅ b) cos∅ c) cos2∅ d) cos-1∅ 2. What is the polarization loss factor when a linear polarized … Read more
This set of Antennas Multiple Choice Questions & Answers (MCQs) focuses on “Types of Polarization”. 1. Which of the following polarization is used in monopole antenna? a) Right-hand Circular b) Linear c) Depends on the feed d) Left-hand Circular 2. Which type of polarization is found in parabolic reflector? a) Right-hand Circular b) Linear c) … Read more
This set of Antennas Question Bank focuses on “Types of Baluns”. 1. Which of the following statement is false regarding Type-1 Sleeve Balun? a) It is shorted at the base b) It has a λ/4 sleeve c) It has a λ/2 sleeve d) Ideally it provides infinite impedance at top 2. Consider a 9:1 Balun … Read more
This set of Antennas Multiple Choice Questions & Answers (MCQs) focuses on “Baluns”. 1. What is a Balun? a) It is used to balance the unbalanced systems b) It unbalances the balanced systems c) A twisted wire d) Main beam of antenna with large beam width 2. A Balun is used to make the current … Read more
This set of Antennas MCQs focuses on “Radiation – Hertzian Dipole”. 1. Hertzian dipole carries which type of current throughout its length while radiating? a) Varying b) Constant c) Depends on type of polarization d) Depends on radiation resistance 2. Power radiated by a Hertzian dipole of length λ/30 and carrying a current 2A? a) … Read more
This set of Antennas Multiple Choice Questions & Answers focuses on “Radiation – Basic Maxwell Equations”. 1. The Maxwell equation ∇×E= is derived from which law? a) Amperes law b) Faradays Law c) Lens law d) Gauss law 2. The minus sign in the Faradays law of induction is given by ______ a) Lens Law … Read more
This set of Antennas Multiple Choice Questions & Answers (MCQs) focuses on “First Null Beam Width”. 1. Angular width between the first nulls or first side lobes is called as _______ a) half power beam width b) full null beam width c) beam area d) directivity 2. If the HPBW is 30° then FNBW is … Read more
This set of Antennas Quiz focuses on “Half Power Beam Width”. 1. Beam area and directivity are related as _____ a) b) c) d) 2. What is the Beam area in radians when the HPBW in perpendicular planes are given by 60°, 30°? a) b) c) d) 2 3. Beam width is the measure of … Read more
This set of Antenna Parameters Interview Questions and Answers for Experienced people focuses on “Power Radiation from Half Wave Dipole”. 1. If the current input to the antenna is 100mA, then find the average power radiated from the half-wave dipole antenna? a) 365mW b) 0.356mW c) 0.365mW d) 356mW 2. The average radiated power of … Read more
This set of Antennas Multiple Choice Questions & Answers (MCQs) focuses on “Antenna Noise Temperature”. 1. Relation between brightness temperature TB and physical body temperatureTp is ____ a) TB= b) TB= c) TB= d) TB= 2. If the reflection co-efficient is ½ then emissivity is ___ a) 3/4 b) 1/4 c) 1/2 d) 3/2 3. … Read more
