Specifications and information are subject to change without notice.

WJ Communications, Inc

x Phone 1-800-WJ1-4401 x FAX: 408-577-6621 x e-mail: sales@wj.com x Web site: www.wj.com

Page 3 of 7 April 2007

FH1

High Dynamic Range FET

Reference Design: 35 MHz, 17 dB Gain

Frequency

MHz

30

35

40

Gain

dB

16.6

16.8

16.8

S11

dB

-19

-20

-13

S22

dB

-21

-16

-14

P1dB

dBm

+21

OIP3

dBm

+39

Noise Figure

dB

4.0

3.4

3.2

Supply Voltage

V

+5

Supply Current

mA

140

25

30

35

40

45

Frequency (MHz)

Gain / Return Loss

13

14

15

16

17

18

-25

-20

-15

-10

-5

0

DB(|S(2,1)|) (L)

DB(|S(1,1)|) (R)

DB(|S(2,2)|) (R)

ID=R1

C=68 pF

ID=C2

C=1000 pF

ID=C3

C=1000 pF

ID=C6

C=1000 pF

ID=L1

L=470 nH

ID=R6

R=390 Ohm

ID=R7

R=390 Ohm

ID=R8

L=390 nH

ID=C1

R=3.9 Ohm

1

2

NET="FH1"

+5V

Notes:

1.

8v…pˆv‡Ã7‚h…qÃHh‡r…vhy)à #´ÃBr‡rxÃHG!9TTÃ

r

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2.

Components not shown in the schematic are either not used or loaded with a thru. Gain for the circuit can be adjusted slightly with the modification of the feedback resistance.

Reference Design: 170 MHz, 14 dB Gain

Frequency

MHz

160

170

180

Gain

dB

14.1

14.2

14.3

S11

dB

-25

-33

-28

S22

dB

-21

-23

-26

P1dB

dBm

+21.6

OIP3

dBm

+42

Noise Figure

dB

2.7

2.7

2.7

Supply Voltage

V

+5

Supply Current

mA

140

0.12

0.14

0.16

0.18

0.2

0.22

Frequency (GHz)

Gain / Return Loss (dB)

11

12

13

14

15

-40

-30

-20

-10

0

DB(|S(2,1)|) (L)

DB(|S(1,1)|) (R)

DB(|S(2,2)|) (R)

ID=R1

C=24 pF

ID=C2

C=1000 pF

ID=C3

C=1000 pF

ID=C6

C=1000 pF

ID=L1

L=220 nH

ID=R6

R=240 Ohm

ID=R7

R=240 Ohm

ID=R2

R=4 Ohm

ID=R8

L=82 nH

1

2

NET="FH1"

+5V

Notes:

1.

Ã2Ã#!à “Ãp‚ƒƒr…ÃÃUurÀhvÃ€vp…‚†‡…vƒÃyvrÃuh†ÃhÃyvrÃv€ƒrqhprÂsÃ$à 

2.

Components not shown in the schematic are either not used or loaded with a thru. Gain for the circuit can be adjusted slightly with the modification of the feedback resistance.