LEAD-FREE / RoHS-COMPLIANT BIAS TEE BTN-0040 The BTN-0040 is constructed using a custom-made, resonance-free conical inductor to achieve extremely broadband performance. By minimizing the overall inductor size and using proprietary packaging techniques, the BTN-0040 is a superior option in terms of performance, reliability and ease-of-use when compared to cumbersome self-made bias tees employing off-the-shelf conical inductors. The extremely low cutoff and resonance free operation makes the BTN-0040 suitable for biasing amplifiers, lasers, and modulators driven with high frequency data patterns. Features Broadband: 40 kHz to 40 GHz Low Insertion Loss Non-Resonant Compact Size Electrical Specifications - Specifications guaranteed from -55 to +100°C, measured in a 50Ω system. Parameter Frequency Range Min Typ Max Insertion Loss (dB) 1.5 2.2 DC Port Isolation (dB) 30 Return Loss (dB) 14 RF Power (W) 1 DC Current (mA) 500 40 kHz-40 GHz DC Voltage (V) 30 DC Resistance (Ω) 6 Inductance (uH) 1000 Capacitance (uF) 1.1 Weight (g) 10 Risetime/Falltime (ps)1 11 1 2 2 2 Specified as 90%/10%. Calculated from bt = (out – in ) .470 [11.94] PROJECTION .370 XXX=±.005 INCH XX=±.02 [9.40] [MM] .050 [1.27] .135 .235 [3.43] [5.97] .470 .200 [11.94] BTN0040 [5.08] Ø.067 Thru 4 PL [1.70] .39 .20 [9.9] [5.0] 215 Vineyard Court, Morgan Hill, CA 95037 | Ph: 408.778.4200 | Fax 408.778.4300 | [email protected] Copyright © 2019 Marki Microwave, Inc. | Rev. A BIAS TEE BTN-0040 Page 2 Schematic RF RF+DC DC Application Examples Fig. 1. Example Schematics of a) Broadband Microwave Amplifier Biasing, b) Laser/LED Biasing for Data Communication and c) Mach-Zender Modulator Biasing for Data Communication Typical Performance 0 0 RF Port -2 -5 Common Port -4 -10 -6 -15 ReturnLoss (dB) InsertionLoss (dB) -8 -20 -10 -25 0 5 10 15 20 25 30 35 40 0 5 10 15 20 25 30 35 40 Frequency (GHz) Frequency (GHz) Fig. 2. RF insertion loss. Fig. 3. Return loss. 215 Vineyard Court, Morgan Hill, CA 95037 | Ph: 408.778.4200 | Fax 408.778.4300 | [email protected] Copyright © 2019 Marki Microwave, Inc. | Rev. A BIAS TEE BTN-0040 Page 3 0 0 -10 -5 -20 -30 -10 -40 -15 -50 -60 -20 Isolation (dB) -70 InsertionLoss (dB) -80 -25 -90 -30 -100 0 5 10 15 20 25 30 35 40 45 50 0 200 400 600 800 1000 Frequency (kHz) Frequency (kHz) Fig. 4. Low frequency RF response. Fig. 5. Low frequency isolation. 0 0 -5 -10 -10 -20 -15 -20 -30 -25 Isolation (dB) Isolation (dB) -30 -40 DC to RF -35 DC to Common -50 -40 0 5 10 15 20 25 30 35 40 0 5 10 15 20 Frequency (GHz) Frequency (kHz) Fig. 6. DC-RF isolation. Fig. 7. Near DC isolation 180 0 0 160 -5 -2 5C 85C 140 -10 -4 120 -15 -6 Group Delay Group Delay (ps) InsertionLoss (dB) 100 -20 -8 CommonPort Return Loss (dB) 80 -25 -10 0 5 10 15 20 25 30 35 40 0 5 10 15 20 25 30 35 40 Frequency (GHz) Frequency (GHz) Fig. 8. Group delay. Fig. 9. Performance over temperature 215 Vineyard Court, Morgan Hill, CA 95037 | Ph: 408.778.4200 | Fax 408.778.4300 | [email protected] Copyright © 2019 Marki Microwave, Inc. | Rev. A BIAS TEE BTN-0040 Page 4 INPUT OUTPUT Fig. 7. Oscilloscope measurements of the BTN-0040 with a 10Gb/s PRBS pattern. Eye diagrams are taken with a 231-1 PRBS input demonstrating minimal eye distortion/closure afforded by the extremely low frequency operation of the bias tee. Model Number Description BTN-0040 40 kHz to 40 GHz Bias Tee with 2.92 mm connectors1, LEAD-FREE/RoHS COMPLIANT 1Consult factory for other connector options. Marki Microwave reserves the right to make changes to the product(s) or information contained herein without notice. Marki Microwave makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Marki Microwave assume any liability whatsoever arising out of the use of or application of any product. Revision History Revision code Revision Date Comment A September 2019 RoHS Compliant Assembly 215 Vineyard Court, Morgan Hill, CA 95037 | Ph: 408.778.4200 | Fax 408.778.4300 | [email protected] Copyright © 2019 Marki Microwave, Inc. | Rev. A .