0805 CDMA Diplexer

S PARAMETER MEASUREMENTS

0

-5

-10

-15

-20

-25

-30

-35

0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6

freq, GHz

0

-5

-10

-15

-20

-25

-30

-35

-40

0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6

freq, GHz

-12

-14

-16

-18

-20

-22

-24

-26

-28

-30

-32

0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6

freq, GHz

Low Band

Return Loss

High Band

Return Loss

Isolation

Note: Measurements were taken using an Anritsu 4 port VNA; Diplexer was mounted on a custom evaluation board. To reduce systematic errors from the VNA, the coaxial

measurement cables, and evaluation board, a Short-Open-Load-Thru (SOLT) calibration was performed, using a custom fabricated calibration substrate. This is the most

common coaxial calibration methods.

6

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