After text activity
I. Reading Exercises:
Exercise 1. Read and memorize using a dictionary:
new capabilities, geographic coverage, wireless technology, new licenses, global roaming, innovative design techniques, air interface protocols, digital signal processors (DSPs), suppression of noise, unwanted interfering signals, isolating high-resistivity substrates inductors, varactors, capacitors, power dissipation, silicon die. |
Exercise 2. Answer the questions:
How can you classify new communications standards?
What do some of the key considerations include to support the processing of signals in universal radios?
How are wireless ICs generally partitioned?
How are ICs fabricated?
How are large digital signal processors (DSPs) fabricated?
Exercise 3. Match the left part with the right:
1. The radio can continuously reconfigure itself for |
a) accurately transduce signals of only a few microvolts. |
2. This requirement is becoming more evident due to |
b) the most appropriate wireless network. |
3. The analog portion is required to
|
c) future radios will have to become universal or multistandard. |
4. Because the geographic coverage offered by those technologies is never uniform |
d) the advances in performance offered by third- and, in the future, fourth-generation wireless technology. |
Exercise 4. Open brackets choosing the right words:
Digital signal processors (DSPs), are (manufactured/fabricated) in processes whose transistors are optimized to (turn/switch) from on to off at the highest possible (velocities/speeds) and lowest power dissipation.
II. Speaking Exercises:
Exercise 1. Describe die; DSP; frequency; integrated circuit analog using the suggested words and expressions as in example:
die formal term; for; an area of silicon; containing an integrated circuit; has many layers; each designed for a specific function; the popular term; for; a die is chip. example: A die is the formal term for an area of silicon containing an integrated circuit. A die has many layers; each designed for a specific function. The popular term for a die is chip. |
analog a; continuously; varying signal. |
DSP digital signal processor is; at; the heart of products; it; collects; processes; compresses; transmits; and; displays; analog and digital data. |
frequency is; the number of cycles; per unit of time; denoted; by; Hertz (Hz); one Hz; equals; one cycle per second. |
integrated circuit is; the formal name; for; a die; or; chip; its name; resulted from the integration of previously separate; transistors; resistors; and capacitors; all on a single chip. |
Exercise 2. Ask questions to the given answers:
1) Question: _________________________________________?
Answer: Mobile network operators are making significant investments in both new licenses and next generation systems that need to be far more flexible than they were previously.
2) Question: _________________________________________?
Answer: The analog portion is required to accurately transduce signals of only a few microvolts.
3) Question: _________________________________________?
Answer: Consequently, the partitioning between analog and digital wireless functions will likely remain until IC technologies solve some of the existing yields, cost and performance limitations associated with universal, fully integrated radios.
