Data
sheet
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Thinking RF solutions
X-Band 6 Bit Phase Shifter
The P35-4400-000-200 is a high performance Gallium
Arsenide phase shifter. It provides 360 of phase control with
six bits of resolution (5.6, 11.25, 22.5, 45, 90, 180). It is
primarily intended for use in phased array radar applications.
A pair of control lines uniquely addresses each bit of phase
shift. When complimentary 0/-5V signals are applied to these
lines the bit of phase shift is either added or turned off in
accordance with the truth table below. The exception is the
5.6 bit, which is addressed by a single control line. The
assembly of this part has been made more flexible by
adding duplicate control pads to two sides of the die.
The die is fabricated using Bookham's 0.5m gate length
MESFET process (S20) and has been via'd for improved
performance. It is fully protected using Silicon Nitride
passivation for excellent performance and reliability.
Features
Broadband 8-11GHz operation
5.6 phase quantization
Flexible bonding requirements
Through GaAs vias for improved
performance
Fast Switching Speed; 3ns typical
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www.bookham.com
Thinking RF solutions
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Parameter Conditions
Min
Typ
Max
Units
Insertion Loss1
8.0-9.0GHz
-
8
10
dB
8.0-11.0GHz
-
9
12
dB
Insertion Loss Variation1
8.0-9.0GHz
-
1.3
2.0
dB
8.0-11.0GHz
-
2.4
3.0
dB
Input Return Loss1
8.0-9.0GHz
12
15
-
dB
8.0-11.0GHz
10
13
-
dB
Output Return Loss1
8.0-9.0GHz
10
12
-
dB
8.0-11.0GHz
8
10
-
dB
Phase Shift Error Vs Setting1,2
8.0-9.0GHz
-
34%
-
8.0-11.0GHz
-
36%
-
Electrical Performance
Ambient Temperature = 223C, Zo = 50
, Control Voltage =0V/-5V, Cardinal States.
Typical RFOW Performance
0
5
10
15
20
25
30
7.
5
8.
0
8.
5
9.
0
9.
5
10.
0
10.
5
11.
0
11.
5
Frequency (GHz)
Return Loss (dB)
Ref State
5.6
11.25
22.5
45
90
180
360
P35-4400-000-200
0
5
10
15
20
25
30
7.
5
8.
0
8.
5
9.
0
9.
5
10.
0
10.
5
11.
0
11.
5
Frequency (GHz)
Return Loss (dB)
Ref State
5.6
11.25
22.5
45
90
180
360
0
2
4
6
8
10
12
7.
5
8.
0
8.
5
9.0
9.
5
10.
0
10.
5
11.0
11.
5
Frequency (GHz)
Insertion Loss (dB)
Ref State
5.6
11.25
22.5
45
90
180
360
-3
-2
-1
0
1
2
3
7.
5
8.
0
8.
5
9.
0
9.
5
10.
0
10.
5
11.
0
11.
5
Frequency (GHz)
Insertion Loss (dB)
Ref State
5.6
11.25
22.5
45
90
180
360
Notes
1. All Parameters measured on wafer.
2. Phase shift error Vs setting is Degrees a percentage of expected set phase shift
Insertion Loss
Insertion Loss Variation
Input Return Loss
Output Return Loss
Truth Table
Ordering Information
P35-4400-000-200
www.bookham.com
462/SM/02762/200 Draft
Bookham Technology 2003 Bookham is a registered trademark of Bookham Technology plc
MMICS
Bookham Technology plc
Caswell
Towcester
Northamptonshire
NN12 8EQ
UK
Tel: +44 (0) 1327 356 789
Fax: +44 (0) 1327 356 698
rfsales@bookham.com
Important Notice
Bookham Technology has a policy of
continuous improvement. As a result
certain parameters detailed on this flyer
may be subject to change without notice.
If you are interested in a particular product
please request the product specification
sheet, available from any RF sales
representative.
P35-4400-000-200
Control Line
Phase Shift
5.6 Bit
11.25 Bit
22.5 Bit
45 Bit
90 Bit
180 Bit
A1
A2
B2
A3
B3
A4
B4
A5
B5
A6
B6
-5V
0V
-5V
-5V
-5V
-5V
-5V
-5V
-5V
0V
-5V
-5V
-5V
-5V
0V
0V
-5V
0V
0V
0V
0V
-5V
-5V
-5V
0V
-5V
-5V
-5V
0V
0V
0V
-5V
0V
0V
0V
-5V
-5V
-5V
-5V
0V
-5V
-5V
0V
0V
0V
0V
-5V
0V
0V
-5V
-5V
-5V
-5V
-5V
0V
-5V
0V
0V
0V
0V
0V
-5V
0V
-5V
-5V
-5V
-5V
-5V
-5V
0V
0V
0V
0V
0V
0V
0V
-5V
Zero
5.6
11.25
22.5
45
90
180
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