This set of Antennas Multiple Choice Questions & Answers (MCQs) focuses on “Binomial Array”. 1. Which of the following array is used to synthesize pattern without side lobes? a) Binomial array b) Linear array c) End-fire array d) Chebyshev array 2. The excitation amplitudes of the binomial array follow ____________ a) Pascal’s triangle b) Bermuda … Read more
This set of Antennas Multiple Choice Questions & Answers (MCQs) focuses on “Adaptive Array – Dolph Pattern Method”. 1. Which of the following a method proposed to design array with any side lobes? a) Dolph-Chebyshev b) Binomial array c) Taylor d) Broad-side Array 2. Dolph pattern uses which of the following polynomial approximation? a) Chebyshev … Read more
This set of Antennas Questions and Answers for Entrance exams focuses on “Adaptive Array – Chebyshev Polynomials Properties”. 1. Which of the following statement is true about the Chebyshev function Tm(x)? a) It is a continuously increasing function after x=1 b) It is a continuously decreasing function after x=1 c) It is a continuously increasing … Read more
This set of Antennas Multiple Choice Questions & Answers (MCQs) focuses on “Adaptive Array – Chebyshev Polynomials Fundamentals”. 1. Which of the following is holds true for the Chebyshev polynomial? a) Tm(-x) = (-1)m Tm(x) b) Tm(-x) = (-1)m Tm-1(1/x) c) Tm(x) = (-1)m Tm(1/x) d) Tm(-x) = (-1)m Tm-1(x) 2. The recurrence relation for … Read more
This set of Antennas Multiple Choice Questions & Answers (MCQs) focuses on “Adaptive Array – Chebyshev Arrays”. 1. Which of the following is the key feature of the Chebyshev array? a) Have constant side lobes and elements are placed uniformly b) Have varying side lobes and elements are placed uniformly c) Minor lobes are present … Read more
This set of Antennas Multiple Choice Questions & Answers (MCQs) focuses on “Adaptive Array – Antenna Synthesis”. 1. Antenna synthesis is inverse process to antenna analysis. a) True b) False 2. In which of the following methods nulls are introduced in the desired direction of pattern? a) Schelkunoff b) Taylor c) Woodward d) Fourier 3. … Read more
This set of Antennas Multiple Choice Questions & Answers (MCQs) focuses on “Adaptive Array”. 1. In which of the following the noise interference is detected and is suppressed further? a) Adaptive arrays b) Phased array c) Planar array d) Sub-array 2. The noise detection and suppression is possible with adaptive arrays. a) True b) False … Read more
This set of Antennas Multiple Choice Questions & Answers (MCQs) focuses on “Phased Array – Fed Types”. 1. Phase array with lens array come under which feeding system? a) Optical-feed system b) Constrained feed system c) Sub array feed d) Phase shifter 2. Which of the following statement is true? a) Lens array has different … Read more
This set of Antennas Multiple Choice Questions & Answers (MCQs) focuses on “Phased Array – Basics”. 1. In which of the following a single radiator source is used to feed antenna with different phase shifts? a) Phased array b) FMCW radar c) Monopulse radar d) CW radar 2. Which of the following principle is used … Read more
This set of Antennas Multiple Choice Questions & Answers (MCQs) focuses on “End Fire Array”. 1. The direction of maximum radiation in end-fire array is ______ with respect to the array axis. a) 0° or 180° b) 90° c) 45° d) 270° 2. What is the phase excitation difference for an end-fire array? a) 0 … Read more
