RF circuit design.

Hi to all.
I am trying to learn a bit of RF circuit design , mostly for interest
sake. I would like to model
some small signal amplifier circuits that I will be "designing" as it
were.
I have a model for the BFR93a small signal transistor.Will this give me
reasonable results
or will it be totally off the mark.I know that the physical
implimentation of the circuit is critical
to the circuit working at all , but at the moment I'm just looking at
the theroetical stuff.
Would the theoretical circuits model accurately with this model. ie
will impedance mismatches , gain etc be accurately modeled.

This is the model I have:

*---------------------------------------------------------------------------
*
* BFR93AW SPICE MODEL
* PHILIPS SEMICONDUCTORS
* Date : September 1995
*
* PACKAGE : SOT323 DIE MODEL : BFR91A
* 1: COLLECTOR; 2: BASE; 3: EMITTER
..SUBCKT BFR93a 1 2 3
Q1 6 5 7 7 BFR91A
* SOT323 parasitic model
Lb 4 5 .6n
Le 7 8 .6n
L1 2 4 .34n
L2 1 6 .1n
L3 3 8 .34n
Ccb 4 6 100f
Cbe 4 8 2f
*
* PHILIPS SEMICONDUCTORS Version:
1.0
* Filename: BFR91A.PRM Date: Feb
1992
*
..MODEL BFR91A NPN
+ IS = 1.32873E-015
+ BF = 1.02000E+002
+ NF = 1.00025E+000
+ VAF = 5.19033E+001
+ IKF = 8.15511E+000
+ ISE = 1.39029E-014
+ NE = 1.51292E+000
+ BR = 1.76953E+001
+ NR = 9.94038E-001
+ VAR = 3.28032E+000
+ IKR = 1.00000E+001
+ ISC = 1.04297E-015
+ NC = 1.18993E+000
+ RB = 1.00000E+001
+ IRB = 1.00000E-006
+ RBM = 1.00000E+001
+ RE = 7.63636E-001
+ RC = 9.00000E+000
+ EG = 1.11000E+000
+ XTI = 3.00000E+000
+ CJE = 2.03216E-012
+ VJE = 6.00000E-001
+ MJE = 2.90076E-001
+ TF = 6.55790E-012
+ XTF = 3.89752E+001
+ VTF = 1.09308E+001
+ ITF = 5.21078E-001
+ CJC = 1.00353E-012
+ VJC = 3.40808E-001
+ MJC = 1.94223E-001
..ENDS
*



Hope I am not being to obscure !
Cheers for now
Rob

.

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