Search RFCafe.com                           
      More Than 17,000 Unique Pages
Please support me by ADVERTISING!
Serving a Pleasant Blend of Yesterday, Today, and Tomorrow™ Please Support My Advertisers!
   Formulas & Data
Electronics | RF
Mathematics
Mechanics | Physics
     AI-Generated
     Technical Data
Pioneers | Society
Companies | Parts
Principles | Assns


 About | Sitemap
Homepage Archive
        Resources
Articles, Forums Calculators, Radar
Magazines, Museum
Radio Service Data
Software, Videos
     Entertainment
Crosswords, Humor Cogitations, Podcast
Quotes, Quizzes
   Parts & Services
1000s of Listings
 Vintage Magazines
Electronics World
Popular Electronics
Radio & TV News
QST | Pop Science
Popular Mechanics
Radio-Craft
Radio-Electronics
Short Wave Craft
Electronics | OFA
Saturday Eve Post

Software: RF Cascade Workbook
RF Stencils Visio | RF Symbols Visio
RF Symbols Office | Cafe Press
Espresso Engineering Workbook

Aegis Power  |  Alliance Test
Centric RF  |  Empower RF
ISOTEC  |  Reactel  |  RFCT
San Fran Circuits

withwave microwave devices - RF Cafe

Innovative Power Products (IPP) Directional Couplers

Please Support RF Cafe by purchasing my  ridiculously low-priced products, all of which I created.

RF Cascade Workbook for Excel

RF & Electronics Symbols for Visio

RF & Electronics Symbols for Office

RF & Electronics Stencils for Visio

RF Workbench

T-Shirts, Mugs, Cups, Ball Caps, Mouse Pads

These Are Available for Free

Espresso Engineering Workbook™

Smith Chart™ for Excel

Innovative Power Products (IPP) Baluns & Transformers

LCP for Microwave Packages and Modules
RF Cafe Quiz #47

RF Engineering Quizzes - RF CafeAll RF Cafe Quizzes make great fodder for employment interviews for technicians or engineers - particularly those who are fresh out of school or are relatively new to the work world. Come to think of it, they would make equally excellent study material for the same persons who are going to be interviewed for a job. Bonne chance, Viel Glück, がんばろう, buena suerte, удачи, in bocca al lupo, 행운을 빕니다, ádh mór, בהצלחה, lykke til, 祝你好運. Well, you know what I mean: Good luck!

Click here for the complete list of RF Cafe Quizzes.

Note: Some material based on books have quoted passages.

LCP for Microwave Packages and Modules - RF Cafe Featured BookThis quiz is based on the information presented in LCP for Microwave Packages and Modules, by Anh-Vu H. Pham, Morgan J. Chen, and Kunia Aihara.

1.  What does LCP stand for?

a)  Longitudinal Coaxial Packaging

b)  Lateral Coaxial Packaging

c)  Low-Loss Chimeral Packaging

d)  Liquid Crystal Polymer

2.  What does "liquid crystal" mean?

a)  A phase of matter that has partly solid and partly liquid properties

b)  A crystal in the liquid phase

c)  A liquid in the crystal phase

d)  A generic name for user informational displays

3.  What are the advantageous electrical properties of LCP material?

a)  Low dielectric constant and loss tangent

b)  Low DC resistance and high inductance

c)  High dielectric constant and loss tangent

d)  High DC resistance and high inductance

4.  How is LCP used in microwave and mm-wave circuits?

a)  As a conductor

b)  As a semiconductor

c)  As a substrate for printed circuits

d)  As a heat dissipation plate

5.  What is the maximum ratio of die size to package size for a chip-scale package (CSP)?

a)  1.0

b)  1.2

c)  1.5

d)  1.7

6.  What is an advantage of using lumped element embedded capacitive coupling on an LCP substrate?

a)  Space savings

b)  Lower insertion loss

c)  Eliminates the need for a feedthrough via

d)  Reduces the number of layers

7.  What happens to common-mode signals at the single-ended output port of an ideal balun?

a)  They double in amplitude and are transmitted through the port

b)  They halve in amplitude and are transmitted through the port

c)  They are completely transmitted through the port

d)  They are completely reflected back away from the port

8.  What is a primary advantage of a long time delay (LTD) line over a phase shifter when used in pulsed power applications?

a)  LTD line is inherently wideband

b)  LTD line is inherently narrowband

c)  LDT line is lossier

d)  LTD line is less lossy

9.  What property of LCP material make it good for hermetic packaging?

a)  High heat absorption

b)  Ultra-low moisture absorbtion

c)  Strong as diamond

d)  It floats

Need some help? Click here for the answers and explanations.

 

Quizzes from vintage electronics magazines such as Popular Electronics, Electronics-World, QST, Radio-Electronics, and Radio News were published over the years - some really simple and others not so simple. Robert P. Balin created most of the quizzes for Popular Electronics. This is a listing of all I have posted thus far.

RF Cafe Quizzes

Vintage Electronics Magazine Quizzes

Vintage Electronics Magazine Quizzes

Vintage Electronics Magazine Quizzes

Posted  10/18/2012

Innovative Power Products (IPP) Baluns & Transformers
Werbel Microwave (power dividers, couplers)

Crane Aerospace Electronics Microwave Solutions

RF Cascade Workbook 2018 by RF Cafe