Post subject: Question: difference between RFIC and RF/Microwave
circuits Posted: Tue Feb 07, 2006 12:18 pm
What is the difference
between RFIC and just plain RF/Microwave circuits? I know one is
integrated circuit and one is just more traditional using surface
mount(microstrip) etc. But my main question is in what applications
do you need RFICs and when do you design just RF circuits.
Post subject: RFPosted:
Wed Feb 08, 2006 12:07 pm
RFIC -- active and passive devices
integrated on chip -- hence the name integrated circuit.
RF/Microwave -- USUALLY discrete using transmission lines, discrete
Post subject: Posted:
Thu Feb 09, 2006 2:34 am
Joined: Tue Dec
13, 2005 2:42 am
Location: Czech Rep.
Difference between RFIC and Microwave CircuitsPosted: Thu Feb 23,
2006 8:15 am
Joined: Fri Feb 17, 2006
Location: London UK
size, but that comes about because of the high dielectric constant
used for RFICs. It means a wavelength in the material is physically
very short, so elements that should resonate can be tightly packed
together in an RFIC. The dielectric constant for typical microwave
substrates is 2.2 compared with 10 or 20 for RFICs.
fields are physically constrained by high e materials in RFICs,
so circuit element interaction is less of a problem, compared with
Microwave stripline circuits, in which layout is crucial to successful