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For Demanding RF Environments
Brickwall Series Integrated
MMDS Downconverters
N
ow MMDS system designers and engineers can improve system
performance with a product designed to operate in the most
demanding of RF environments, while also protecting the LNA from
the inevitable introduction of new interfering services. The Brickwall
Series of MMDS downconverters uses a “filter first” approach for
pre-LNA brickwall protection against PCS, WCS, and radar services.
Unwanted interfering carriers are filtered out before they reach the
first amplifier stage in the circuit, preventing the amplifier from being
overdriven and allowing use in areas previously not available. The
Hi_Q interdigital style filter offers superior discrimination at the
lowest insertion loss.
Brickwall series integrated MMDS downconverters are directly
matched to an antenna, allowing full RF integration. The antennas
are either Andrew Corporation’s Mag Grid or Microceptor Series of
S-band products. The downconverters are compatible to multiple
modulation schemes, including 256 QAM, and are available in a
variety of amplifier gains.
QD-5446
26T-5446
Features and Options
•
Pre-LNA filtering
•
Lowest insertion loss
•
Digital compatibility
•
Low noise figure
•
Superior discrimination
Ordering Information
Type #
DL-5447
DL-5446
DL-5445
QD-5447
QD-5446
QD-5445
DL-5453
DL-5451
DL-5450
QD-5453
QD-5451
QD-5450
18T-5447
18T-5446
18T-5445
26T-5447
26T-5446
26T-5445
Antenna Type
13
13
13
16
16
16
13
13
13
16
16
16
18
18
18
24
24
24
dBi
dBi
dBi
dBi
dBi
dBi
dBi
dBi
dBi
dBi
dBi
dBi
dBi
dBi
dBi
dBi
dBi
dBi
Dual Microceptor
Dual Microceptor
Dual Microceptor
Quad Microceptor
Quad Microceptor
Quad Microceptor
Dual Microceptor
Dual Microceptor
Dual Microceptor
Quad Microceptor
Quad Microceptor
Quad Microceptor
Mag Grid Parabolic
Mag Grid Parabolic
Mag Grid Parabolic
Mag Grid Parabolic
Mag Grid Parabolic
Mag Grid Parabolic
Bandpass Filter
Pre-LNA
Pre-LNA
Pre-LNA
Pre-LNA
Pre-LNA
Pre-LNA
Pre-LNA
Pre-LNA
Pre-LNA
Pre-LNA
Pre-LNA
Pre-LNA
Pre-LNA
Pre-LNA
Pre-LNA
Pre-LNA
Pre-LNA
Pre-LNA
Brickwall
Brickwall
Brickwall
Brickwall
Brickwall
Brickwall
Brickwall
Brickwall
Brickwall
Brickwall
Brickwall
Brickwall
Brickwall
Brickwall
Brickwall
Brickwall
Brickwall
Brickwall
Radar Notch
Amp Gain
20
32
36
20
32
36
20
32
36
20
32
36
20
32
36
20
32
36
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
X
X
X
X
X
X
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Brickwall Series Integrated MMDS Downconverters
Parameter
Antenna Gain (dBi)
DL series
QD series
18T series
26T series
Amplifier Gain*
Specification
1:
dB
-10
1:S21 Fwd Trans /M Log Mag 10.0 dB/ Ref 0.00 dB
2
2:Off
Meas1:Mkr2 2686.000 MHz
mmds idf 2500-2686 MHz
Apr 17. 2000 13:25:07
1
-1.499 dB
5
13
16
18
24
@
@
@
@
2150–2686
2150–2686
2150–2686
2150–2686
MHz
MHz
MHz
MHz
-20
-30
-40
-50
-60
-70
-80
-90
3 4
Start 1 000.000 MHz
1:Mkr (MHz) dB
1: 2500.0000
-1.956
-1.499
2> 2686.0000
3: 1930.0000 -98.570
4: 1990.0000 -100.86
5: 2710.0000 -15.118
6: 2750.0000 -36.817
7: 2800.0000 -55.060
6
20 dB: xx-5447 & xx-5453
32 dB: xx-5446 & xx-5451
36 dB: xx-5445
5 dB: xx-5447 & xx-5453
4 dB: xx-5446 & xx-5451
3 dB: xx-5445
2500–2686 MHz
222–408 MHz
2278 MHz ± 30 KHz vs. -40°C to +60°C
> -65 dBc/Hz @ 100 Hz
> -93 dBc/Hz @ 10 KHz
> -120 dBc/Hz @ 1 MHz
RF Rejection (pre-LNA)
>
>
>
>
95
55
10
15
dB
dB
dB
dB
@
@
@
@
1930–1990 MHz
2360 MHz
2705 MHz
2710 MHz
>
>
>
>
7
Noise Figure*
1
Stop 3 000.000 MHz
2:Mkr (MHz) dB
Operating Frequencies**
RF
IF
LO Frequency
LO Phase Noise
Rejection Statistics
PCS
WCS
Radar
Radar
Output Interface
Supply Voltage
Supply Current
RF/IF Combined
100 dB @ 1930–1990 MHz
100 dB @ 2360 MHz
35 dB @ 2705 MHz
40 dB @ 2710 MHz
75 Ohms F-type female
+15 to +24 V
220 mA typical
* where xx is antenna series prefix
**33 Channel versions available upon request (6 MHz/channel)
PS-1341: 120 volt power supply
PS-2342: 220 volt power supply
Andrew Corporation
Broadband and
Amplifier Products
1400 N. Roosevelt
Burlington, IA 52601
Phone: 800-843-5419 (U.S.)
319-752-3607
Fax: 319-753-5508
Andrew Corporation
10500 W. 153rd Street
Orland Park, IL 60462 USA
From North America:
Telephone: 1-800-255-1479
Fax: 1-800-349-5444
International:
Telephone: +1-708-873-2307
Fax: +1-708-349-5444
Customer Support
Center
From North America:
Telephone: 1-800-255-1479
Fax: 1-800-349-5444
International:
Telephone: +1-708-873-2307
Fax: +1-708-349-5444
On-Line Document Center
• view • e-mail • fax • print
One e-source for information
www.andrew.com
Fax-On-Demand
From North America:
1-800-861-1700
International:
+1-708-873-3614
Internet
www.andrew.com
All designs, specifications and availabilities of products and services presented in this bulletin are subject to change without notice.
Bulletin 10440C (7/01) Copyright © 2001 Andrew Corporation, Orland Park, IL 60462 USA
Printed in USA
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