News Article


Stripline Phase-adjustable Adapters
Date: 28.02.2019 | Author: Tim Schwandner | Category: Adjusting Phase

Application

System Use: "Set the electrical length with no locking needed due to the design."

  • Precision Phase Adjusters, DC to 8.0 GHz
  • Small housing, flat pack configuration.
  • Two mounting locations are provided. Other mounting positions are offered on request.
  • Impedance of 50 Ohms is maintained over the full adjustment range.
  • Smooth continuous phase adjustment.
  • The electrical length change does not require an external physical length change.
  • Rugged construction: housing is made from aluminum, connector outer conductors from stainless steel.
  • Captivated connector center contacts.
  • Operating temperature range: -10°C to +115°C.
  • Differences of the designs to the right are: round vs. square housing and 4-hole flanged connector vs. 2-hole flange.
  • Different connector confi gurations may be offered on request. The Housing height may change.

The design shall be such that the outline dimensions are met. In addition, the connectors shall meet the interface dimensions per MIL-PRF-39012.

 

Materials

Aluminum AlMg4.5Mn per DIN 1725, AlMgSi0.5 per DIN 1725, AlMgSi1 per DIN 1725 (6061-T6 per QQ-A-225/8)
Steel corrosion resistant 1.4305 per DIN 17440 (QQ-S-764, class 303 or ASTM-A-582-80)
Brass CuZn39Pb3 per DIN 17660 (QQ-B-626, half hard)
Copper Beryllium 33-25 CuBe2Pb H per DIN 17666 (QQ-C-530)
PTFE Fluorocarbon per DIN 52900 (MIL-P-19468 and L-P403)
Silicone Rubber per DIN 3771 (MIL-R-5847 and ZZ-R-765, Class II B,) Grade 50 - 75
Stripline per in-house specification

 

Surface Treatments

Center Contacts shall be gold plated to a minimum thickness of .00005 inch (1.27 μm) in accordance with MIL-G-45204, Type II, Grade C.
Stainless Steel connector housings shall be passivated per QQ-P-35.
Aluminum Housings shall have a Surtech fi nish, corrosion resistant according to MIL-DTL-5541F and MIL-DTL-81706B.

 

Product Overview

Part No. Connectors/
Sex
Frequency
Range
(GHz)
VSWR
max.
Insertion Loss
max. (dB)
Phase Shift
min.
Turn Angle
approx.
Insertion
Phase typ.
min. - max.
Material/
Weight
LS-L108-2121 SMA
female/female
DC - 8.0 GHz 1.30:1 0.8 22° @ 1.0 GHz
65° @ 3.0 GHz
130° @ 6.0 GHz
175° @ 8.0 GHz
55° 1.0 GHz: 110 - 130
3.0 GHz: 325 - 390
6.0 GHz: 650 - 780
8.0 GHz: 865 - 1040

Electrical Length typ.:
9.0 cm min.
10.8 cm max.
Aluminum,
iridite finish
45 g
(1.56 oz)
LS-L208-2121
LS-L308-2121
LS-L408-2121
LS-K108-2121 Aluminum,
iridite finish
50 g
(1.76 oz)
LS-K208-2121
LS-K308-2121
LS-K408-2121

 

Phase Shift vs. Frequency

 

Spectrum Elektrotechnik GmbH
www.spectrum-et.com | sales@spectrum-et.com | +49 (0)89 / 354 804-0 | +49 (0)89 / 354 804-90
Contact Details
Spectrum Elektrotechnik GmbH
Olschewskibogen 1
80935 Munich
Germany

Mailing address:
P.O. Box 450 533
80905 Munich

+49 (0)89 / 354 804-0
+49 (0)89 / 354 804-90

sales@spectrum-et.com
www.spectrum-et.com