CSD-20M-3G Datasheet, PDF (1/2 Pages) Merrimac Industries, Inc. – DIRECTIONAL COUPLER

CSD-20M-3G
DIRECTIONAL COUPLER
REV: 003, 05/05/05
TECHNICAL DESCRIPTION
FEATURES
• 2.0 - 4.0 GHz
• LOW LOSS
• HIGH DIRECTIVITY
• EXCELLENT COUPLING ACCURACY
• SURFACE MOUNT
APPLICATIONS
• WCDMA BASE STATION
RF SUBSYSTEMS
• SATCOM
The Multi-Mix^® CSD series provides a 20 dB coupling with low insertion loss, low VSWR, and high
directivity. Accurate coupling factors make this series ideal for use in power amplifiers and RF signal dis-
tribution and processing.
CSD - 20 directional couplers are fusion bonded multilayer stripline devices. The fusion bonding process
yields a homogeneous monolithic dielectric structure with reliability, ruggedness, and electrical perform-
ance that is superior to conventional adhesive bonding techniques.
FREQUENCY RANGE
MHz
2000 - 4000
FREQUENCY SENSITIVITY
(dB MAX)
± 1.0
GENERAL SPECIFICATIONS
INSERTION LOSS
(dB MAX)
MEAN COUPLING
(dB)
0.35
20 ± 1
DIRECTIVITY
( dB MIN)
POWER
(AVG. CW WATTS)
12
100
VSWR
(MAX, ALL PORTS)
1.35:1
OPERATING
TEMPERATURE
-55° TO +85° C
PACKAGE OUTLINE / TAPE AND REEL ORIENTATION
PORT 2
.450
[11.43]
.024
[0.61] TYP.
PORT 1
DIRECTION OF FEED
P0
P
1
PAD 1
K0
.350
[8.89]
CSD-20M-3G
.065
W
[1.65]
"A"
"A"
B0
MARKED SIDE UP
PORT 3
.050
[1.27] TYP.
TOP VIEW
PORT 4
W
P1
P0
A0
B0
K0
ENGLISH (in) 0.9449 0.4724 0.1575 0.3701 0.4685 0.0795
METRIC (mm) 24.00 12.00 4.00 9.40 11.90 2.02
A
0
SECTION "A"-"A"
THE MULTI-MIX MICROTECHNOLOGY^® GROUP IS ISO 9001:2000 REGISTERED
U.S. Patent 6,099,677 and other Patents Pending.
Merrimac Industries / 41 Fairfield Place, West Caldwell, NJ 07006
Tel: [phone].MMFM / Fax: [phone] / Email: [e-mail] / www.merrimacind.com