EP105
FLEXWELL® Premium Elliptical Waveguide

Rev : B | Rev date : 18 Apr 2024

FLEXWELL® elliptical waveguide is constructed of longitudinally continuous seam welded, highly conductive copper tube, corrugated and precision formed into an elliptical cross section. It is manufactured in continuous lengths using a special seam welding process developed by the RFS Technologies organization.

The corrugation design achieves high transverse stability, flexibility and crush strength for superior handling and forming at an installation. The inherent strength and flexibility of FLEXWELL® waveguide allows on location, a continuous length of waveguide to be run directly from a tower-mounted antenna to the equipment building.

A FLEXWELL® elliptical waveguide feeder requires less planning and reduces installation costs when compared to a feeder system using a rigid rectangular waveguide.
FLEXWELL® waveguide is available cut to length with factory attached connectors or in continuous lengths for termination in the field.

FEATURES / BENEFITS

Designed for optimum system performance
Excellent electrical performance
Low loss and low VSWR (low return loss)
Electrical test made on every waveguide during manufacturing
Every waveguide passes pressure test
Reduced installation cost and time compared to using rigid rectangular waveguides
No need of flange joints, twist section and bends
Easy transportation in coils or on drums
Cutting at exact length and connectorizing in the field

Technical features

General Specifications
Performance		Standard (STD) or Premium (PREM) to be selected when ordering
Jacket		J (Polyethylene black) by default, JFN (Fire redartant black) upon request

Electrical Specifications
Typical Operating Band	GHz	10 - 11.7
Max. VSWR / Return Loss	dB	1.062 / 30.5 Premium Performance (suggest to use with tunable or pre-tuned connectors to achieve optimal system performance) 1.15 / 23.1 Standard Performance
Cut-off Frequency	GHz	6.49

Mechanical Specifications
Dimension over Jacket	mm (in)	33 x 20 (1.3 x 0.8)
Weight	kg/m (lb/ft)	0.5 (0.34)
Minimum Bending Radius E Plane, Single Bend	mm (in)	130 (5)
Minimum Bending Radius H Plane, Single Bend	mm (in)	280 (11)
Minimum Bending Radius E Plane, Repeated Bends	mm (in)	150 (6)
Minimum Bending Radius H Plane, Repeated Bends	mm (in)	300 (12)
Maximum Twist	degree/m (degree/ft)	6 (1.8)
Max. Operating Pressure	bar (psi)	0.5 (7)
Max. Pulling Length per Hoisting Grip	m (ft)	100 (305)
Standard Hanger Spacing	m (ft)	0.6 (2)

Temperature Specifications
Installation Temperature	°C (°F)	-40 to 60 (-40 to 140 )
Storage Temperature	°C (°F)	-70 to 85 (-94 to 185 )
Operation Temperature	°C (°F)	-50 to 85 (-58 to 185 )

Attenuation and Power Rating
Frequency (GHz)	Attenuation dB/100m	Attenuation dB/100ft	Avarage Power (KW)	Group velocity (%c)	Group Delay (ns/100m)	Group Delay (ns/100ft)
10	9.58	2.92	1.69	76.1	438.4	133.6
10.1	9.51	2.90	1.70	76.6	435.3	132.7
10.2	9.45	2.88	1.71	77.1	432.4	131.8
10.3	9.40	2.86	1.72	77.7	429.6	130.9
10.4	9.34	2.85	1.73	78.1	426.9	130.1
10.5	9.29	2.83	1.74	78.6	424.3	129.3
10.6	9.25	2.82	1.75	79.1	421.9	128.6
10.7	9.20	2.81	1.76	79.5	419.6	127.9
10.8	9.16	2.79	1.77	79.9	417.3	127.2
10.9	9.13	2.78	1.78	80.3	415.2	126.5
11	9.09	2.77	1.78	80.7	413.1	125.9
11.1	9.06	2.76	1.79	81.1	411.2	125.3
11.2	9.03	2.75	1.79	81.5	409.3	124.7
11.3	9	2.74	1.80	81.9	407.5	124.2
11.4	8.97	2.73	1.81	82.2	405.7	123.7
11.5	8.94	2.73	1.81	82.6	404.1	123.2
11.6	8.92	2.72	1.82	82.9	402.4	122.7
11.7	8.90	2.71	1.82	83.2	400.9	122.2