ISO 9001:2000

CERTIFIED

Products App Notes New! Contact Home Employment Search Request Catalog Request Quote

 

QJH Series Matched Hybrid Tees
(PDF available)

 

Characteristics
  • Broadband Operation
  • High Isolation
  • Low Insertion Loss
  • Low VSWR
Product Description

QuinStar Technology's QJH series of matched hybrid tees (magic tees) cover the frequency range of 18 to 170 GHz in nine waveguide bands. These four-port devices are used for balanced power-combining and/or dividing RF signals over a broad bandwidth. They are constructed using a rugged and compact split-block mechanical design with convenient interfaces. A signal entering either of the two input ports is split equally between two of the other ports and is isolated from the fourth port. The signals emanating from the "E" plane port are 180 degrees out of phase. The signals emanating from the "H" plane port are in phase. The ports are matched so that isolation between the series arm (E-plane) and the shunt arm (H-plane) is 30dB minimum. Isolation between co-linear arms is 20dB typical.

Typical applications for these tees include power dividers/combiners, bridge circuits, balanced mixers, amplifiers, and instrumentation setups. QuinStar can provide custom 4- or 8-way power dividers by combining several hybrid tees (power dividers) into a single housing. It is also possible to configure the hybrid junctions to achieve unequal power split in 3, 5, 6 or 7 ports.

QuinStar Technology can also supply custom configurations ("folded tees") with output ports in different locations than in the standard product. Other power dividers (short slot hybrids and "rat-race" hybrids) are also available as special orders. If your application requires a unique power division scheme, please contact QuinStar with your requirements.

Specifications
FREQUENCY BAND K Ka Q U V E W F D
Frequency Range (GHz) 1 18-26.5 26.5-40 33-50 40-60 50-75 60-90 75-110 90-140 110-170
Waveguide Size WR-42 WR-28 WR-22 WR-19 WR-15 WR-12 WR-10 WR-8 WR-6
Insertion Loss (dB max) 0.5 0.5 0.7 0.8 1.0 1.0 1.0 1.2 1.2
VSWR, H-Plane (max) 1.5:1 1.5:1 1.5:1 1.5:1 1.5:1 1.5:1 1.5:1 1.5:1 1.5:1
VSWR, E-Plane (max) 1.6:1 1.6:1 1.6:1 1.6:1 1.6:1 1.6:1 1.6:1 1.6:1 1.6:1
Balance (± dB typ) 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5

Other waveguide sizes are available.
1 Standard products meet full performance specifications over 80% of the waveguide band, with slightly degraded performance over the balance of the band. Narrow bandwidth versions (25% of waveguide band) with superior isolation and lower insertion loss are available.


Outline Drawings / Mechanical Specifications
(round flange pattern shown)
FREQUENCY
BAND
WAVEGUIDE
SIZE
FLANGE
PATTERN
DIMENSIONS (inches/mm)
A B C
K WR-42 UG-595/U 1.25 / 31.8 1.25 / 31.8 0.89 / 22.6
Ka WR-28 UG-599/U 1.00 / 25.4 1.00 / 25.4 1.00 / 25.4
Q WR-22 UG-383/U 1.38 / 35.1 1.38 / 35.1 1.38 / 35.1
U WR-19 UG-383/U 1.38 / 35.1 1.38 / 35.1 1.38 / 35.1
V WR-15 UG-385/U 1.00 / 25.4 1.00 / 25.4 0.80 / 20.3
E WR-12 UG-387/U 1.00 / 25.4 1.00 / 25.4 0.80 / 20.3
W WR-10 UG-387/U 1.00 / 25.4 1.00 / 25.4 0.80 / 20.3
F WR-8 UG-387/U 1.00 / 25.4 1.00 / 25.4 0.80 / 20.3
D WR-6 UG-387/U 1.00 / 25.4 1.00 / 25.4 0.80 / 20.3

Ordering Information

Model Number: QJH - A B CD 00 (Click here for automatic web quote request form)

(Please specify exact center frequency when ordering narrowband version)

A = Waveguide band designator:
K = K-band
A = Ka-band
Q = Q-band
U = U-band
V = V-band
E = E-band
W = W-band
F = F-band
D = D-band
B = Version:
U = Upper 80% of waveguide band
L = Lower 80% of waveguide band
N = Narrowband
Z = Custom
CD = Frequency:
Fullband: FB
Narrowband: Center frequency rounded to nearest GHz (1A = 100-109 GHz, 1B = 110-119 GHz, etc.)

Also available:
qjg_precision_general_purpose_directional_couplers_1_thumb.jpg (1095 bytes) Precision General Purpose Couplers (QJG Series) qjx_general_purpose_crossguide_couplers_1_thumb.jpg (1197 bytes) General Purpose Crossguide Couplers (QJX Series)
qjr_precision_high_directivity_couplers_1_thumb.jpg (1157 bytes) Precision High Directivity Couplers (QJR Series) quh_e_and_h_plane_waveguide_tees_1_thumb.jpg (1049 bytes) E and H Plane Waveguide Tees (QUH Series)
qbc_bidirectional_and_dual_directional_waveguide_couplers_1_thumb.jpg (837 bytes) Bidirectional and Dual-directional Waveguide Couplers (QBC Series) qsp_short_slot_hybrid_power_divider_1_thumb.jpg (1115 bytes) Short Slot Hybrid Power Divider (QSP Series)
qdc_broadband_waveguide_directional_couplers_1_thumb.jpg (963 bytes) Broadband Waveguide Directional Couplers (QDC Series) qhr_single_and_triple_hybrid_ring_power_dividers_1_thumb.jpg (1173 bytes) Single and Triple Ring Hybrid Power Divider (QHR Series)
qjc_precision_crossguide_couplers_1_thumb.jpg (1152 bytes) Precision Crossguide Couplers (QJC Series) qmd_multi-output_power_dividers_1_thumb.jpg (1039 bytes) Multi-Output Power Divider (QMD Series)
Precision Bi-directional and Dual-directional Waveguide Couplers (QJB/QJD Series)
Master List of All Products Catalog Request

 

[ Products | App Notes | New! | Contact Us | About Us | Home | HR | Antenna Services | Request Catalog or Quote ]

© 2008 QuinStar Technology, Inc.
Phone: 310.320.1111   |   Fax: 310.320.9968   |   E-mail: sales@quinstar.com   |   Emergency Waveguide Service