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EHFFD1629 1.8GHz 1:1 Balun
[Dimensions] Unit: mm
0.48 0.32 0.44
Dec. 6, `04
[Pin assignment]
No. 1 2 3 4 IN OUT1 OUT2 GND
(4)
1.6 +/- 0.1
(3)
0.72
0.44
[Equivalent circuit]
(1) (2) (1)IN
1.6 +/- 0.1
0.4 0.65 +/- 0.1
0.8
(2)OUT1
(4)GND
(3)OUT2
[Characteristics] Ta=-30...+85degC
Item Frequency range Insertion loss Amplitude balance Phase balance Impedance Unbalance port VSWR Remark Spec. 1700-2000 Back to back 0.8 max 50/50 1.5 max 50/50 180+/-10 IN/OUT 50/50 50/50 2.5 max DC bias must be 0V. Condition Unit MHz dB dB deg ohm -
(Note) This product does not include a DC-cutting device. Application of a DC voltage betw een the Balance port and the Unbalance port may cause product deterioration or breakage.
[Test circuit diagram]
NETWORK ANALYZER S-PARAMETER TEST SET
Fig. 1
(3) GND GND Additional Resistor 56 ohm
Fig. 2
GND (5)
(1) GND A B Item Insertion loss (IL) Loss 1 Loss 2 Phase 1 Phase 2 Unbalance port VSWR
(2)
(4) GND
Circuit Port A Fig. 2 (4) Fig. 1 (1) Fig. 1 (1) Fig. 1 (1) Fig. 1 (1) Fig. 1 (1)
Port B 50 ohm Remark (5) for a device is (IL)/2. (2) (3) Amplitude balance (3) (2) = | Loss 1 - Loss 2 | (2) (3) Phase balance (3) (2) = | Phase 1 - Phase 2 | (2) (3)

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