TYPICAL PERFORMANCE
QHD-2N-0.45G
Coupling
Coupled
-2
-2.25
-2.5
Magnitude (dB)
Magnitude (dB)
-2.75
-3
-3.25
-3.5
-3.75
-4
-4.25
-4.5
350 360 370 380 390 400 410 420 430 440 450 460 470 480 490 500 510 520
Frequency (MHz)
-35
-40
350 360 370 380 390 400 410 420 430 440 450 460 470 480 490 500 510 520
Frequency (MHz)
Isolation
Direct
0
-5
-10
-15
-20
-25
-30
VSWR
Port 1
1.5
Port 2
Port 3
Port 4
-85
-86
1.4
Phase (Degrees)
-87
-88
-89
-90
-91
-92
-93
-94
1
350 360 370 380 390 400 410 420 430 440 450 460 470 480 490 500 510 520
Frequency (MHz)
Phase Balance
VSWR
1.3
1.2
1.1
-95
350 360 370 380 390 400 410 420 430 440 450 460 470 480 490 500 510 520
Frequency (MHz)
MOUNTING CONFIGURATION
GROUND PLANE OF UNIT SHOULD
BE SOLDERED TO GROUND PLANE
OF CIRCUIT BOARD FOR OPTIMUM
PERFORMANCE.
0.537 [13.64]
0.380 [9.65]
GROUND PLANE
S
VIA H
UND OUG
GROD THR
TE
PLA
0.063 [1.60]
0.068 [1.73]
50 OHM LINE
.032 DIELECTRIC THICKNESS
ER = 3.38
TRUTH TABLE
1
1
2
3
4
Input
Iso
-90°
0°
2
Iso
Input
0°
-90°
3
-90°
0°
Input
Iso
0.034 TYP. [0.86]
0.050 [1.27]
4
0°
-90°
Iso
Input
Merrimac Industries / 41 Fairfield Place, West Caldwell, NJ 07006
Tel: 1.888.434.MMFM / Fax: 973.882.5990 / Email: MMFM@merrimacind.com / www.Multi-Mix.com
MERRIMAC [ MERRIMAC INDUSTRIES, INC. ]
