Document ID: SDI-002
Revision: 2.0

High Quality Standard and Custom Designed Microwave & Millimeterwave Products

Waveguide Magic Tees, SWM Series
FEATURES:APPLICATIONS:

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Frequency coverage: 18 to 170 GHz
Waveguide or split block configurations
Low insertion loss and even port balanceHigh isolation
Up to full waveguide band operations
Instrumentation grade

Test labs
Instrumentation
Subassemblies

DESCRIPTION:
SWM series magic tees are offered in both waveguide and split block versions. The below models cover 18 to 110 GHz, however, additional models
can be offered for frequencies up to 170 GHz. While the waveguide version features flange interfaces for a convenient integration from both directions,the split block version boasts a more compact size for system integrations. Through a detailed design and fabrication process, the catalog models offer
up to full waveguide band operations with slight performance degradation at the band edges.
The magic tee is a four-port device. Since its collinear ports are perfectly matched, it is also referred to as a matched hybrid tee. The port relationshipof the magic tee is illustrated in the figure below. When two equal-amplitude, in-phase signals are fed into the collinear ports, the resultant output signal
appears at the H-plane port only. On the other hand, when two equal-amplitude, 180˚ out-of-phase signals are fed into the collinear ports, the resultant
output signal appears at the E-plane port only. Alternatively, signals fed into the H-plane port are split into two equal-amplitude, in-phase signals at thecollinear ports and signals fed into the E-plane port are split into two equal-amplitude, 180° out-of-phase signals. The H-plane and E-plane ports areisolated. Because of this feature, the magic tees are widely used in monopulse radar antenna systems and many other systems where phase and port
isolation are critical. When either the H-plane or E-plane port is terminated, these magic tees are used as in-phase or out-of-phase power splitters orcombiners. Furthermore, the magic tees can be used to construct multi-way power combiners or dividers.

CATALOG MODELS:

WBand

Model Number

Waveguide

Frequency
Range (GHz)

InsertionLoss (dB)1Isolation(dB)

Amplitude
Balance (dB)

VSWR

OutlineFeatureK

SWM-18327320-42-SB

WR-4218.0 to 26.50.15

20.0±0.10

1.5:1

WM-BK

Block

K

SWM-18327320-42-SWWR-42

18.0 to 26.50.20

20.0±0.10

1.5:1

WM-WK

WaveguideKa

SWM-27340320-28-SB

WR-28

26.5 to 40.0

0.20

20.0±0.15

1.5:1

WM-BA

Block

Ka

SWM-27340320-28-SW

WR-28

26.5 to 40.00.25

20.0±0.15

1.5:1

WM-WA

WaveguideQ

SWM-33350320-22-SB

WR-22

33.0 to 50.00.25

20.0±0.15

1.5:1

WM-BQ

Block

Q

SWM-33350320-22-SW

WR-22

33.0 to 50.00.30

20.0±0.15

1.5:1

WM-WQ

WaveguideU

SWM-40360320-19-SB

WR-1940.0 to 60.00.25

20.0±0.20

1.5:1

WM-BU

Block

U

SWM-40360320-19-SW

WR-19

40.0 to 60.00.30

20.0±0.20

1.5:1

WM-WU

WaveguideV

SWM-50375320-15-SB

WR-15

50.0 to 75.00.30

20.0±0.25

1.5:1

WM-BV

Block

V

SWM-50375320-15-SW

WR-15

50.0 to 75.00.35

20.0±0.25

1.5:1

WM-WV

WaveguideE

SWM-60390320-12-SB

WR-1260.0 to 90.00.30

20.0±0.30

1.5:1

WM-BE

BlockE

SWM-60390320-12-SWWR-1260.0 to 90.00.35

20.0±0.30

1.5:1

WM-WE

WaveguideW

SWM-75311420-10-SBWR-1075.0 to 110.00.30

20.0±0.30

1.5:1

WM-BW

Block

W

SWM-75311420-10-SWWR-1075.0 to 110.0

0.35

20.0±0.30

1.5:1

WM-WW

Waveguide

Note: 1) Insertion loss is the power loss

E-PlaneCollinearon top of the loss due to the power

Collinear

E-Planesplitting.
Collinear

Collinear
H-planeH-planeSageMillimeter.com ■ 3043 Kashiwa Street, Torrance, CA 90505 ■ Ph (424)-757-0168 ■ Fax (424)-757-0188 ■ Email: Sales@SageMillimeter.com© Copyright 2012 by SAGE Millimeter, Inc.

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Data subject to change without noticeW