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LHF series durable low-loss phase stable cable

LHF-150，LHF-260，LHF-380，LHF-520

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Featuers&Advantages

• Excellent mechanical phase stability
• Excellent IL stability
• Better bending performance,Durable
• High-power
• High shielding efficiency
• Maximum operating frequency DC-67GHz
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Product description

LHF series cables provide low insertion loss within the current industry, and have very good mechanical phase, temperature phase and attenuation stability. Currently, the highest operating frequency of this series is 67GHz. It uses ultra-low-density PTFE medium and silver-plated copper tape. It is formed by wrapping and shielding. This series of products are widely used in military radars, electronic countermeasures and high-power applications with extremely demanding requirements;

Performance parameter

Mechanical Dimensions

Cable Model LHF-150 LHF-260 LHF-380 LHF-520 Material
Center Conductor 0.31  (0.0122) 0.51 （0.0201） 0.92  （0.0362 1.30  （0.0512) Silver Plated Copper
Dielectric 0.92（0.0362） 1.53（0.0602） 2.7（0.1063） 3.78  (0.1488) Microporus PTFE
Inner shield 1.02 （0.0402） 1.65（0.0650）） 2.85（0.1122） 4.00  (0.1575) Helical SPC Tape
InnerTape —— 1.95  （0.0768） 3.15 （0.1299） 4.25  (0.1673) LD PTFE
Outer Braid 1.28 （0.0504） 2.20（0.0851) 3.55  （0.1398 4.60  (0.1811) Silver Plated Copper Braid
Jacket 1.50（0.0590）） 2.60（0.0945） 3.85  （0.1516） 5.2（0.2087） FEP

Electrical Data

Cable Model Impedance Vp (%) Shield effectiveness Permittivity Delay Capacitance Voltage Withstand Peak power Cut-off Frequency
LHF-150 50Ω 0.77 ＞90dB 1.69 4.32nS/m 86.8pF/m 200 DC 1.2 KW 90GHz
1.312nS/Ft 26.45pF/Ft
LHF-260 50Ω 0.77 ＞90dB 1.69 4.32nS/m 86.8pF/m 500 DC 2.5 KW 46GHz
1.312nS/Ft 26.45pF/Ft
LHF-380 50Ω 0.77 ＞90dB 1.69 4.32nS/m 86.8pF/m 1000 DC 5.6 KW 29GHz
1.312nS/Ft 26.45pF/Ft
LHF-520 50Ω 0.77 ＞90dB 1.69 4.32nS/m 86.8pF/m 1500 DC 10 KW 18GHz
1.312nS/Ft 26.45pF/Ft

Mechanical Data

Cable Model Bend Radious:installation Bend Radious:repeated Weight Temp, Operating&Installation
LHF-150 7 mm 15 mm 13 g/m -55 +165℃
0.275590551 in 0.590551181 in 0.0087 lbs/ft -67 +329℉
LHF-260 12 mm 24 mm 18 g/m -55 +165℃
0.472440945 in 0.94488189 in 0.0121 lbs/ft -67 +329℉
LHF-380 18 mm 36 mm 36 g/m -55 +165℃
0.708661417 in 1.417322835 in 0.0241 lbs/ft -67 +329℉
LHF-520 25 mm 50 mm 65 g/m -55 +165℃
0.984251969 in 1.968503937 in 0.0436 lbs/ft -67 +329℉

Attenuation vs. Frequency dB/100m


Frequency (MHz) 300 1000 3000 6000 8000 12000 18000 26500 40000 50000 60000 67000 K1 K2
LHF-150 61.30 114.30 204.60 298.50 350.30 440.50 556.80 700.00 898.90 一 一 一 3.4484700 0.0052300
LHF- 260 34.20 63.10 111.20 159.70 186.00 231.00 287.70 355.90 448.00 508.50 564.70 601.90 1.9500000 0.0014500
LHF-380 20.30 37.30 65.30 93.50 108.50 134.20 166.30 204.50 256.00 一 一 一 1.1590000 0.0005980
LHF-520 12.60 23.60 42.50 62.30 73.30 92.40 117.20 148.00 一 一 一 一 0.4563810 0.0003281 

Attenuation at Any Frequency = [ k1 x SQRT (Fmhz)] + [ k2 x Fmhz ]; dB per 100 meter
Power Handling vs. Frequency （Maximum）


Frequency (MHz) 300 1000 3000 6000 8000 10000 12000 18000 26500 40000 50000 60000 67000
LHF-150 50 27 15 10 9 8 7 6 4 3 一 一 一
LHF- 260 500 271 154 107 92 86 74 59 48 38 34 30 28
LHF-380 950 517 285 206 177 158 143 116 94 75 一 一 一
LHF-520 1608 860 479 327 278 245 221 174 138 一 一 一 一

Phase Stability（Detection method: one rotation along the repeated bending radius）


Amplitude Stability（Detection method: one rotation along the repeated bending radius）


Phase Change vs Temperature (PPM)


The temperature phase refers to the PPM value of the phase that changes in a certain temperature range when the cable is in a static state. The PPM value of the LHF series cable in the temperature range of -50°~85°: about 950PPM, if PPM is converted into a percentage The number "%" is: 950ppm=0.95%, relatively speaking, the change is very small. The main reason is that the structure of the cable and the material of the dielectric layer play a decisive role. So this is also the characteristic of UHF series cables. In addition to the influence of temperature on phase In addition, the main factor that affects the phase change is the mechanical environment. The phase value of the cable and the amplitude of the phase change after bending are tested under the constant temperature and static state to determine the mechanical phase stability.

Component selection information


LHF series connector selection reference

Connector type Connector code Working frequency (GHz) LHF-260 LHF360 LHF-520 Typical standing wave
1.85mm Male 18M 67 TS-18M260-01     1.25
Female 18F TS-18F260-01    
2.4mm Male 24M   TS-24M260-01 TS-24M360-02   1.2
Female 24F TS-24F260-01 TS-24F360-02  
2.92mm Male 29M 40 TS-29M260-01 TS-29M360-06   1.2
Female 29F TS-29F260-01 TS-29F360-06  
3.5mm Male 35M 26.5 TS-35M260-01 TS-35M360-02 TS-35M520-01 1.2
Female 35F TS-35F260-01 TS-35F360-02 TS-35F520-01
SMA Male SM 26.5 TS-SM260-01 TS-SM360-04 TS-SM520-03 1.2
Female SF TS-SF260-01 TS-SF360-02 TS-SF520-02

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