【正文】 ll the above 7. Who hosts the MTTS International Microwave Symposium? a) Microwave Journal Magazine b) Microwaves amp。Reilly c) Albert Einstein 6. Which flying (movement) condition will always result in a Doppler speed of 0 m/s? a) Perfectly constant speed into/out of the antenna boresight b) Perfect concentric circle around antenna at constant altitude c) Speeds at integer multiples of antenna rotation rate 7. What does “MTI” stand for? a) Multiple Target Indication b) Mean Time Interval c) Moving Target Indication 8. Synthetic Aperture Radar (SAR) radar is mostly likely to be located on which platform? a) Police car b) Ship c) Airplane 9. Which feature of a “stealth” aircraft is most responsible for its low observability? a) Radar absorbent paint b) Multifaceted surfaces c) Minimal use of metals in airframe 10. What kind of radar did the webmaster of RF Cafe work on while in the ? a) MPN14 b) RDR12 c) NEXRAD RF Quiz 8: Hallmark Decades in Electronics 1. In which decade was the transistor invented? a) 1940s b) 1950s c) 1960s 2. In which decade was the telegraph invented? a) 1810s b) 1840s c) 1870s 3. In which decade was the Inter first implemented? a) 1950s b) 1960s c) 1970s 4. In which decade was the first solid state integrated circuit demonstrated? a) 1950s b) 1960s c) 1970s 5. In which decade were the first successful diode and triode vacuum tubes invented? a) 1880s b) 1890s c) 1900s 6. In which decade was the telephone invented? a) 1850s b) 1860s c) 1870s 7. In which decade was the AEEE (now the IEEE) founded? a) 1880s b) 1910s c) 1940s 8. In which decade with the first transatlantic radio broadcast occur? a) 1880s b) 1890s c) 1900s 9. In which decade was the SPICE simulator introduced? a) 1960s b) 1970s c) 1980s 10. In which decade was the ARRL founded? a) 1910s b) 1920s c) 1930s RF Quiz 9: A Smasbord of RF Topics 1. Where did Bluetooth? get its name? a) Nobody really knows b) In honor of Harald Bl229。 Schwarz ? Voltronics ? General Microwave ? Dielectric Laboratories ? RF Micro Devices ? GHz Technology _______________ _______________ _______________ _______________ _______________ _______________ _______________ _______________ _______________ _______________ _______________ _______________ _______________ _______________ _______________ _______________ _______________ _______________ _______________ _______________ _______________ _______________ _______________ _______________ _______________ _______________ _______________ _______________ _______________ _______________ _______________ _______________ RF Quiz 6: Wireless Communications Fundamentals 1. Which of the following WLAN standards is on a different frequency band than the others? a) b) c) d) 2. What does the term ruggedness refer to in wireless power amplifiers? a) Ability to withstand thermal stress b) Ability to withstand mechanical stress c) Ability to withstand load mismatch d) All the above 3. Which FCC regulation governs the unlicensed ISM band? a) Part 15 b) Chapter 11 c) d) Subsection 11 4. In which semiconductor technology are the majority of cellphone PAs manufactured? a) Si/SiCMOS b) GaN c) GaAs/InGaP d) SiGe 5. What is a major advantage of Low Temperature Cofired Ceramic (LTCC) substrates? a) Densely integrated passive ponents b) Better thermal dissipation c) Lower bill of materials d) All the above 6. Which phone standard supports the highest data rate? a) iDEN b) GPRS c) EDGE d) GSM 7. Which ponent is typically not part of a frontend module (FEM)? a) Power amplifier b) Filter c) Switch d) Controller 8. Which two systems are most likely to experience concurrent operation problems? a) WLAN + GSM b) Bluetooth + WLAN c) GSM + WCDMA d) Bluetooth + AMPS 9. An isolator is typically required at the output of the PA for which transmitter system a) EDGE b) Bluetooth c) GSM d) CDMA/WCDMA 10. What is the monly claimed nominal operational range for Bluetooth? a) 10 m b) ft c) ^15 ltyr d) All the above RF Quiz 7: Radar Fundamentals 1. What is a “radar mile?” a) 1 nautical mile b) 1 statute mile c) 181。 Hard Rubber 7. Along which side of rectangular waveguide is an E bend made? a) Longer side b) Shorter side c) Either side 8. What is the lowest modulation index at which an FM carrier is suppressed? a) b) ? () c) Only AM carriers can be suppressed 9. How much current is required through the human body to cause an onset to muscular paralysis during electrocution? a) Voltage is the culprit during electrocution, not current b) 21 mA c) 189。 Wool b) Rubber Balloon amp。F) 3. What is the frequency band for the 900 MHz GSM cellular band? a) Tx: 880915 MHz / Rx: 925960 MHz b) Tx: 824849 MHz / Rx: 869894 MHz c) There is no 900 MHz GSM band 4. What does GSM stand for? a) General System for Mobile phones b) Greater Spectrum for Mobile phones c) Global System for Mobile Communication 5. What does POTS stand for (in munications)? a) Plain Old Telephone System b) PersOnal Telephony System c) Personal Orbital amp。F) c) 186176。F) b) 250176。re on the subject of Smith charts, what is the impedance of the point at the far left edge of the center horizontal line? a) Infinite ohms (open circuit) b) Zero ohms (short circuit) c) 50 ohm match 3. A singleconversion downconverter uses a highside local oscillator (LO) to translate the input radio frequency (RF) to an intermediate frequ