K-BAND over Fiber

F-KBAND

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Description Features Drawings Models Specification Support

Description

F-KBAND 25 GHz Wide Band K Band Over Fiber Optic Transceiver

The F-KBAND series wide band laser transceivers are designed for enabling a high linearity optical link for RF over fiber in the K-BAND up to 25 GHz. The unit can also be used as a repeater for extending the transmission distance of a 30 Gb/s link. The F-KBAND incorporates a broadband optical transmitter and linear receiver into a compact rack mounted unit. The F-KBAND can be used for carrying almost any type of RF modulated signals such as RF over Fiber (RFoG), satellite/IF link, WiMax optical link, microwave over fiber, and mobile signals in fiber. The unit uses a lithium-niobate external modulator to convert input microwave/RF signals to optical waveforms from a frequency range of 100 kHz up to 25 GHz. The F-KBAND maintains excellent gain flatness over a wide frequency range due to a very narrow line width DFB laser. K Band over fiber transmission distances of up to 120 km are possible using singlemode optical fiber.

Features

• Useful Bandwidth up to 20 GHz
• K Band Over Fiber for links up to 120 km
• Highly Linear for Analog Transmission
• Low RIN, Narrow Linewidth DFB Laser
• Broadband LiNbO3 Modulator
• High Power Linear PIN reciever
• Optional RF amplifier to enhance gain

Drawings

Model Selection

Model Number	Description
F-KBAND-Tx-10	K-BAND Singlemode Fiber Transmitter for 10km
F-KBAND-Rx-10	K-BAND Singlemode Fiber Reciever for 10km
F-KBAND-Tx-40	K-BAND Singlemode Fiber Transmitter for 40km
F-KBAND-Rx-40	K-BAND Singlemode Fiber Reciever for 40km
F-KBAND-Tx-80	K-BAND Singlemode Fiber Transmitter for 80km
F-KBAND-Rx-80	K-BAND Singlemode Fiber Reciever for 80km
F-KBAND-Tx-120	K-BAND Singlemode Fiber Transmitter for 120km
F-KBAND-Rx-120	K-BAND Singlemode Fiber Reciever for 120km

Specification

*All Specifiactions Subject to Change Without Notice
Frequency Range	15.0 - 30.0 GHz
Out of Band Rejection	>70 dB
Flatness	± 0.2 dB / 48 MHz ± 0.7 dB / 500 MHz (typ.) ± 1.0 dB / Full band (typ.)
Intermodulation	-50 dBc (max.), -55 dBc (typ.)
CNR	(36 MHz BW) >50 dBc
Input Signal
Low Gain Setting	-25 to -40 dBm
High Gain Setting	-10 to -40 dBm
Gain Stability @ Constant Temp	± 0.15 dB / 24 hours
OIP3 (from min to max gain)
Low Gain Setting	-15 to 0 dBm (typ.)
High Gain Setting	0 to +15 dBm (typ.)
Noise Figure @ max input gain
Low Gain Setting	<22 dB (typ.)
High Gain Setting	<9 dB (typ.)
Group Delay Variation	Peak to peak 0.4 ns (typ.)
Input/Output Impedance	50 Ohm
Input/Output VSWR	1.4:1
Maximum RF Input (with no damage)
High Gain Setting	-10 dBm
Low Gain Setting	+5 dBm
Gain Control Manual front panel	standard
Test Port Coupling	20 dB ± 1.0

Documents

DataSheet