RF Cafe Calculator Workbook - · XLS file · Web view ·...

19
Calculators RF Cafe Calculator Workbook v5.1 by RF Cafe Please report any errors here: Attenuators Bandpass Filters Cascaded Components Coils / Inductors Directional Couplers Highpass Filters Lowpass Filters Mixer Frequency Conversion Noise Figure↔Temp Path Loss, 1-Way Path Loss, 2-Way Click here to check to purchase unlocked version Click here to check for Updates Propagation Time Radar Blind Speed Rectangular Cavity VSWR↔RL↔Gamma Voltage Divider [email protected] Revision History This locked version of the RF Cafe Calculator Workbook is provided free of charge. You are encouraged to distribute it freely, as long as no changes are made and you require no payment for it. An unlocked version is available for purchase. -- Check Back Often for Updates -- Disclaimer: Your use of this RF Cafe Calculator Workbook indicates that you accept full responsibility for the results produced, and that you agree to hold harmless Kirt Blattenberger, RF Cafe, and it assigns, for any damages that may result from its use. Note: This file is supplied in a format compatible with versions back to Excel 97. Saving the file in Excel 2003 format will greatly reduce the file size.

Transcript of RF Cafe Calculator Workbook - · XLS file · Web view ·...

Page 1: RF Cafe Calculator Workbook - · XLS file · Web view · 2008-01-25Title: RF Cafe Calculator Workbook Author: Kirt Blattenberger Description: Unlocked version available. Last modified

Calculators

RF Cafe Calculator Workbookv5.1

by RF Cafe

Please report any errors here:

AttenuatorsBandpass FiltersCascaded ComponentsCoils / InductorsDirectional CouplersHighpass FiltersLowpass FiltersMixer Frequency ConversionNoise Figure↔TempPath Loss, 1-WayPath Loss, 2-Way

Click here to check to purchase unlocked version Click here to check for Updates Propagation TimeRadar Blind SpeedRectangular CavityVSWR↔RL↔GammaVoltage Divider

[email protected] Revision History

This locked version of the RF Cafe Calculator Workbook is provided free of charge. You are encouraged to distribute it freely, as long as no changes are made and you require no payment for it. An unlocked version is available for purchase. -- Check Back Often for Updates --

Disclaimer: Your use of this RF Cafe Calculator Workbook indicates that you accept full responsibility for the results produced, and that you agree to hold harmless Kirt Blattenberger, RF Cafe, and it assigns, for any damages that may result from its use.

Note: This file is supplied in a format compatible with versions back to Excel 97. Saving the file in Excel 2003 format will greatly reduce the file size.

Page 2: RF Cafe Calculator Workbook - · XLS file · Web view · 2008-01-25Title: RF Cafe Calculator Workbook Author: Kirt Blattenberger Description: Unlocked version available. Last modified

Resistive Attenuator Calculator

Attenuation : 3 dB K= 1.995

Tee (T) Pad

8.55 8.55

Zin 50 141.95 50 Zout

Red values indicate unallowed Zin:Zout combination.

17.61

Zin 50 292.46 292.46 50 Zout

RF Cafe Calculator Workbook, v5.1, by RF Cafe

Click here for the online version Click here to check for Updates

Pi (p) Pad

Home

H6
K is the linear attenuation ratio
Page 3: RF Cafe Calculator Workbook - · XLS file · Web view · 2008-01-25Title: RF Cafe Calculator Workbook Author: Kirt Blattenberger Description: Unlocked version available. Last modified

Bandpass Filter Response

Order: 5Upper: 15 MHzLower: 10 MHzRipple: 1Graph Parameters (101 pts)Stop: 20 MHzStart: 5 MHzStep: 0.15 MHz

Gain (dB)Freq (MHz) Butterworth Chebyshev

5 -69.90 -87.675.15 -68.08 -85.825.3 -66.28 -83.975.45 -64.49 -82.145.6 -62.71 -80.305.75 -60.93 -78.475.9 -59.16 -76.646.05 -57.39 -74.816.2 -55.61 -72.976.35 -53.84 -71.116.5 -52.05 -69.246.65 -50.26 -67.366.8 -48.46 -65.456.95 -46.64 -63.527.1 -44.80 -61.567.25 -42.94 -59.577.4 -41.06 -57.547.55 -39.16 -55.467.7 -37.22 -53.337.85 -35.25 -51.14

8 -33.25 -48.898.15 -31.20 -46.568.3 -29.11 -44.158.45 -26.97 -41.638.6 -24.77 -38.998.75 -22.52 -36.218.9 -20.20 -33.269.05 -17.82 -30.109.2 -15.38 -26.699.35 -12.89 -22.939.5 -10.38 -18.739.65 -7.91 -13.919.8 -5.59 -8.299.95 -3.58 -2.4110.1 -2.04 0.0010.25 -1.03 -0.6710.4 -0.47 -1.0010.55 -0.19 -0.7110.7 -0.07 -0.2410.85 -0.02 0.00

11 -0.01 -0.1411.15 0.00 -0.4911.3 0.00 -0.8211.45 0.00 -0.9911.6 0.00 -0.9611.75 0.00 -0.7511.9 0.00 -0.4512.05 0.00 -0.1712.2 0.00 -0.0112.35 0.00 -0.0512.5 0.00 -0.2512.65 0.00 -0.5412.8 0.00 -0.8012.95 0.00 -0.9713.1 0.00 -0.9913.25 0.00 -0.8613.4 0.00 -0.6013.55 0.00 -0.2913.7 -0.01 -0.0613.85 -0.03 -0.01

14 -0.06 -0.2014.15 -0.14 -0.5514.3 -0.28 -0.8814.45 -0.52 -1.0014.6 -0.92 -0.7814.75 -1.51 -0.2414.9 -2.33 -0.0815.05 -3.38 -1.8815.2 -4.62 -5.5115.35 -6.01 -9.4015.5 -7.47 -12.9515.65 -8.98 -16.1015.8 -10.49 -18.9215.95 -11.98 -21.4716.1 -13.45 -23.8016.25 -14.88 -25.9516.4 -16.26 -27.9416.55 -17.61 -29.8116.7 -18.91 -31.5616.85 -20.17 -33.22

17 -21.39 -34.7917.15 -22.57 -36.2817.3 -23.72 -37.7017.45 -24.83 -39.0617.6 -25.91 -40.3617.75 -26.96 -41.6217.9 -27.97 -42.8218.05 -28.96 -43.9818.2 -29.93 -45.1018.35 -30.86 -46.1818.5 -31.78 -47.2218.65 -32.67 -48.2318.8 -33.53 -49.2218.95 -34.38 -50.1719.1 -35.21 -51.0919.25 -36.01 -51.9919.4 -36.80 -52.8719.55 -37.58 -53.7219.7 -38.33 -54.5519.85 -39.07 -55.37

20 -39.79 -56.16 RF Cafe Calculator Workbook, v5.1, by RF Cafe

Click here for the online version (Butterworth) Click here to check for Updates

Click here for the online version (Chebyshev)

dB (Cheby)

Home

4 6 8 10 12 14 16 18 20 22-100.00

-90.00

-80.00

-70.00

-60.00

-50.00

-40.00

-30.00

-20.00

-10.00

0.00

ButterworthChebyshev

Frequency

Gai

n (d

B)

C9
These values determine the range of frequencies used in the Freq column in the table below.
D13
Attenuation is sometimes given here, but the negative values really indicate gain.
Page 4: RF Cafe Calculator Workbook - · XLS file · Web view · 2008-01-25Title: RF Cafe Calculator Workbook Author: Kirt Blattenberger Description: Unlocked version available. Last modified

System Cascade Parameter Calculator

Input Power: 0 dBm Output Values

Component Name Gain (dB) NF (dB) IP2 (dBm) IP3 (dBm) Pwr (dBm) Gain (dB) NF (dB) IP2 (dBm) IP3 (dBm)1 0 0 999 999 0.00 0.00 0.00 999.00 999.002 0 0 999 999 0.00 0.00 0.00 992.98 995.993 0 0 999 999 0.00 0.00 0.00 989.46 994.234 0 0 999 999 0.00 0.00 0.00 986.96 992.985 0 0 999 999 0.00 0.00 0.00 985.02 992.016 0 0 999 999 0.00 0.00 0.00 983.44 991.227 0 0 999 999 0.00 0.00 0.00 982.10 990.558 0 0 999 999 0.00 0.00 0.00 980.94 989.979 0 0 999 999 0.00 0.00 0.00 979.92 989.4610 0 0 999 999 0.00 0.00 0.00 979.00 989.0011 0 0 999 999 0.00 0.00 0.00 978.17 988.5912 0 0 999 999 0.00 0.00 0.00 977.42 988.2113 0 0 999 999 0.00 0.00 0.00 976.72 987.8614 0 0 999 999 0.00 0.00 0.00 976.08 987.5415 0 0 999 999 0.00 0.00 0.00 975.48 987.24

Click here for the online version Click here to check for Updates

Home

F8
Referenced to component output
G8
Referenced to component output
K8
Referenced to component output
L8
Referenced to component output
Page 5: RF Cafe Calculator Workbook - · XLS file · Web view · 2008-01-25Title: RF Cafe Calculator Workbook Author: Kirt Blattenberger Description: Unlocked version available. Last modified

Inductance

Single-Layer, Air-Core Coil Straight Wire

Diameter (2r): 0.001 inDiameter (d): 0.25 in Length (x): 1 in

Length (L): 0.5 in Inductance (Low Freq): 38.3237722 nH# Turns: 30 Inductance (High Freq): 37.0537722 nH

Inductance: 2.29591837 uH

Inductance: 2.29591837 uHDiameter: 0.25 in

Length: 0.5 in# Turns: 30

RF Cafe Calculator Workbook, v5.1, by RF Cafe

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Wire diameter on RF Cafe.

Home

Page 6: RF Cafe Calculator Workbook - · XLS file · Web view · 2008-01-25Title: RF Cafe Calculator Workbook Author: Kirt Blattenberger Description: Unlocked version available. Last modified

Directional Couplers

Input (Port 1) Mainline Loss Transmitted (Port 2) Coupling Loss Only0 dBm 1 dB -4.010517066 dBm -3.010517066 dB

Coupling Factor Directivity Isolation-3.0103 dB 40 dB 43.0103 dB

Coupled (Port 3) Isolated (Port 4)-3.0103 dBm -43.0103 dBm

Click here for the online version Click here to check for Updates

Home

Mainline (l/4)

F6
Insertion loss not including theoretical Coupling Loss
I6
Mainline Loss + Theoretical Coupling Loss
L6
Theoretical coupling loss
Page 7: RF Cafe Calculator Workbook - · XLS file · Web view · 2008-01-25Title: RF Cafe Calculator Workbook Author: Kirt Blattenberger Description: Unlocked version available. Last modified

Highpass Filter Response

Order: 5Cutoff: 10 MHzRipple: 1Graph Parameters (101 pts)Stop: 30 MHzStart: 5 MHzStep: 0.25 MHz

Gain (dB)Freq (MHz) Butterworth Chebyshev

5 -30.107239 -45.3060465.25 -27.990973 -42.8385125.5 -25.974718 -40.4428245.75 -24.05034 -38.108173

6 -22.211056 -35.8245556.25 -20.451319 -33.5825366.5 -18.766742 -31.3730326.75 -17.154071 -29.187111

7 -15.611173 -27.0158067.25 -14.137041 -24.849947.5 -12.731802 -22.6799767.75 -11.396685 -20.495942

8 -10.133945 -18.2875298.25 -8.9466891 -16.0445818.5 -7.8385932 -13.7585258.75 -6.8134881 -11.425875

9 -5.8748332 -9.05623269.25 -5.0251362 -6.6890849.5 -4.2654096 -4.42323779.75 -3.594774 -2.446199910 -3.0103 -1

10.25 -2.507123 -0.219763310.5 -2.0788019 -0.000523210.75 -1.7178317 -0.1021047

11 -1.416201 -0.323036711.25 -1.1658986 -0.551764111.5 -0.9593078 -0.741029111.75 -0.7894679 -0.87682

12 -0.650213 -0.959838612.25 -0.5362126 -0.996489212.5 -0.4429439 -0.994859412.75 -0.3666252 -0.9630262

13 -0.3041275 -0.908397913.25 -0.2528832 -0.837501213.5 -0.2107969 -0.755955313.75 -0.1761649 -0.6685147

14 -0.1476056 -0.579136714.25 -0.1239998 -0.49105214.5 -0.1044412 -0.406832814.75 -0.0881956 -0.3284589

15 -0.0746677 -0.257381815.25 -0.0633743 -0.194587215.5 -0.0539223 -0.140657515.75 -0.0459915 -0.0958334

16 -0.0393203 -0.06007316.25 -0.033695 -0.03310916.5 -0.0289399 -0.014501216.75 -0.0249109 -0.0036842

17 -0.0214892 -8.703E-0617.25 -0.0185765 -0.002777617.5 -0.0160916 -0.011274517.75 -0.013967 -0.0247876

18 -0.0121465 -0.042626818.25 -0.0105834 -0.064136718.5 -0.0092386 -0.088705618.75 -0.0080792 -0.1157704

19 -0.0070777 -0.144819319.25 -0.0062111 -0.175392219.5 -0.0054597 -0.207079719.75 -0.004807 -0.2395209

20 -0.0042391 -0.272400420.25 -0.0037441 -0.305444920.5 -0.0033119 -0.338419520.75 -0.002934 -0.3711244

21 -0.0026029 -0.403391221.25 -0.0023125 -0.435079121.5 -0.0020573 -0.466072221.75 -0.0018327 -0.4962765

22 -0.0016348 -0.525616922.25 -0.0014602 -0.554034622.5 -0.0013059 -0.581485722.75 -0.0011693 -0.6079381

23 -0.0010482 -0.633370823.25 -0.0009408 -0.657771623.5 -0.0008454 -0.68113623.75 -0.0007605 -0.703466

24 -0.0006849 -0.724769124.25 -0.0006175 -0.745057324.5 -0.0005573 -0.764346224.75 -0.0005035 -0.7826548

25 -0.0004554 -0.800004125.25 -0.0004122 -0.816417425.5 -0.0003736 -0.831919225.75 -0.0003388 -0.8465353

26 -0.0003076 -0.860292326.25 -0.0002796 -0.873217226.5 -0.0002543 -0.885337426.75 -0.0002315 -0.8966803

27 -0.0002109 -0.907273427.25 -0.0001924 -0.917143727.5 -0.0001756 -0.926318327.75 -0.0001604 -0.9348235

28 -0.0001466 -0.942685228.25 -0.0001342 -0.94992928.5 -0.0001228 -0.956579528.75 -0.0001126 -0.962661

29 -0.0001032 -0.96819729.25 -9.474E-05 -0.973210429.5 -8.701E-05 -0.977723329.75 -7.997E-05 -0.9817571

30 -7.355E-05 -0.9853325 RF Cafe Calculator Workbook, v5.1, by RF Cafe

Click here for the online version (Butterworth) Click here to check for Updates

Click here for the online version (Chebyshev)

dB (Cheby)

Home

0 5 10 15 20 25 30 35-50

-45

-40

-35

-30

-25

-20

-15

-10

-5

0

ButterworthChebyshev

Frequency

Gai

n (d

B)

C8
These values determine the range of frequencies used in the Freq column in the table below.
D12
Attenuation is sometimes given here, but the negative values really indicate gain.
Page 8: RF Cafe Calculator Workbook - · XLS file · Web view · 2008-01-25Title: RF Cafe Calculator Workbook Author: Kirt Blattenberger Description: Unlocked version available. Last modified

Lowpass Filter Response

Order: 5Cutoff: 10 MHzRipple: 1Graph Parameters (101 pts)Stop: 25 MHzStart: 0 MHzStep: 0.25 MHz

Gain (dB)Freq (MHz) Butterworth Chebyshev

0 0 00.25 0.00 -0.01744750.5 0.00 -0.06834480.75 0.00 -0.148558

1 0.00 -0.25181371.25 0.00 -0.37045111.5 0.00 -0.49620671.75 0.00 -0.6208981

2 0.00 -0.73693332.25 0.00 -0.83763962.5 0.00 -0.91744342.75 0.00 -0.9719538

3 0.00 -0.99799983.25 0.00 -0.99366843.5 0.00 -0.95837413.75 0.00 -0.892984

4 0.00 -0.80000414.25 0.00 -0.68381664.5 0.00 -0.55092424.75 0.00 -0.4101146

5 0.00 -0.27240045.25 -0.01 -0.15053845.5 -0.01 -0.05794215.75 -0.02 -0.0069224

6 -0.03 -0.0064636.25 -0.04 -0.0600736.5 -0.06 -0.1644246.75 -0.08 -0.3092835

7 -0.12 -0.47873177.25 -0.17 -0.65314397.5 -0.24 -0.81125057.75 -0.33 -0.9318119

8 -0.44 -0.99485948.25 -0.59 -0.98291198.5 -0.78 -0.88311768.75 -1.01 -0.6921849

9 -1.30 -0.42761879.25 -1.64 -0.15053119.5 -2.04 -0.00032529.75 -2.50 -0.208055410 -3.01 -1

10.25 -3.58 -2.403672310.5 -4.20 -4.21879810.75 -4.86 -6.2016342

11 -5.56 -8.191611211.25 -6.28 -10.11242211.5 -7.03 -11.93675911.75 -7.79 -13.660206

12 -8.57 -15.2876812.25 -9.35 -16.82725312.5 -10.13 -18.28752912.75 -10.92 -19.676605

13 -11.70 -21.00173513.25 -12.47 -22.2692813.5 -13.24 -23.48476613.75 -14.01 -24.652987

14 -14.76 -25.77810514.25 -15.51 -26.86374714.5 -16.24 -27.91308614.75 -16.97 -28.928911

15 -17.68 -29.91368115.25 -18.39 -30.86958315.5 -19.09 -31.7985615.75 -19.77 -32.702356

16 -20.45 -33.58253616.25 -21.12 -34.44051316.5 -21.78 -35.27756516.75 -22.43 -36.094858

17 -23.07 -36.89345217.25 -23.70 -37.67431717.5 -24.32 -38.43834417.75 -24.93 -39.186354

18 -25.54 -39.91910118.25 -26.14 -40.63728718.5 -26.73 -41.34155918.75 -27.31 -42.03252

19 -27.88 -42.71073119.25 -28.45 -43.37671519.5 -29.01 -44.03096119.75 -29.56 -44.673929

20 -30.11 -45.30604620.25 -30.65 -45.92771820.5 -31.18 -46.53932320.75 -31.70 -47.141219

21 -32.22 -47.73374521.25 -32.74 -48.31721821.5 -33.25 -48.89194221.75 -33.75 -49.458201

22 -34.24 -50.01626722.25 -34.73 -50.56639722.5 -35.22 -51.10883622.75 -35.70 -51.643815

23 -36.17 -52.17155723.25 -36.64 -52.69227323.5 -37.11 -53.20616523.75 -37.57 -53.713423

24 -38.02 -54.21423224.25 -38.47 -54.70876924.5 -38.92 -55.197224.75 -39.36 -55.679687

25 -39.79 -56.156385 RF Cafe Calculator Workbook, v5.1, by RF Cafe

Click here for the online version (Butterworth) Click here to check for Updates

Click here for the online version (Chebyshev)

dB (Cheby)

Home

0 5 10 15 20 25 30-60

-50

-40

-30

-20

-10

0

ButterworthChebyshev

Frequency

Gai

n (d

B)

C8
These values determine the range of frequencies used in the Freq column in the table below.
D12
Attenuation is sometimes given here, but the negative values really indicate gain.
Page 9: RF Cafe Calculator Workbook - · XLS file · Web view · 2008-01-25Title: RF Cafe Calculator Workbook Author: Kirt Blattenberger Description: Unlocked version available. Last modified

Mixer Frequency Conversion

Input Ä OutputHigh: 950 — — Upper Sideband: High: 1750Low: 900 Low: 1700

| Lower Sideband: High: 150Units Local Oscillator Low: 100MHz 800

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Home

Page 10: RF Cafe Calculator Workbook - · XLS file · Web view · 2008-01-25Title: RF Cafe Calculator Workbook Author: Kirt Blattenberger Description: Unlocked version available. Last modified

Noise Figure (NF) - to - Noise Temperature (NT)

Noise Figure: 3.01 dB Noise Temperature: 289.96 K

Noise Temperature: 289.96 K Noise Figure: 3.01 dB

RF Cafe Calculator Workbook, v5.1, by RF Cafe

Click here for the online version Click here to check for Updates

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Page 11: RF Cafe Calculator Workbook - · XLS file · Web view · 2008-01-25Title: RF Cafe Calculator Workbook Author: Kirt Blattenberger Description: Unlocked version available. Last modified

1-Way Path Loss (Radio)

Transmitter Path ReceiverPower Out Distance Power @ Antenna

10 kW 31 km -26.25442 dBmAntenna Gain Attenuation

40 dBi 136.25 dB Antenna GainPower @ Antenna 45 dBi

100000 kW System GainFrequency -5 dB

5 GHz Detector PowerWavelength 13.74558 dBm

0.059958 m

RF Cafe Calculator Workbook, v5.1, by RF Cafe

Click here for the online version Click here to check for Updates

Home

Do not specify a path distance less than l/10.

G8
Use N/A for no attenuation
Page 12: RF Cafe Calculator Workbook - · XLS file · Web view · 2008-01-25Title: RF Cafe Calculator Workbook Author: Kirt Blattenberger Description: Unlocked version available. Last modified

2-Way Path Loss (Monostatic Radar)

Transmitter Path Target ReceiverPower Out Distance to Target Power @ Target Power @ Antenna

10 kW 31 km -26.25442 dBm -117.5313 dBmAntenna Gain Attenuation

40 dBi to/from Target Radar Cross-Section Antenna GainPower @ Antenna 136.25 dB 9 45 dBi

100000 kW RCS Gain System GainFrequency 44.98 dB -5 dB

5 GHz Detector PowerWavelength -77.53 dBm

0.059958 m

RF Cafe Calculator Workbook, v5.1, by RF Cafe

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m2

Home

Do not specify a path distance less than l/10.

G8
Use N/A for no attenuation
Page 13: RF Cafe Calculator Workbook - · XLS file · Web view · 2008-01-25Title: RF Cafe Calculator Workbook Author: Kirt Blattenberger Description: Unlocked version available. Last modified

RF Energy Propagation Time

Distance Propagation Speed Frequency1 km 299792.458 mi/s 300 MHz

Relative Dielectric Propagation Time Wavelength1 3.335640952 us 0.9993082 m

# of Wavelengths1000.6923

RF Cafe Calculator Workbook, v5.1, by RF Cafe

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C9
Dielectric constant of the propagation medium relative to that of air (=1).
I11
This is the number of wavelengths at the specified Frequency over the specified Distance in a material with the specified Relative Dielectric constant.
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Radar Blind Speed

Transmitter Target Frequency Blind Speeds

3 GHz 1st 53.277 ft/sWavelength 2nd 106.554 ft/s

0.327857 ft 3rd 159.830 ft/sPRF 4th 213.107 ft/s325 pps 5th 266.384 ft/s

RF Cafe Calculator Workbook, v5.1, by RF Cafe

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Home

Radial

F8
This is the lowest unambiguous blind speed
C11
Pulse Repitition Frequency, sometimes referred to as Pulse Repitition Rate (PRR).
Page 15: RF Cafe Calculator Workbook - · XLS file · Web view · 2008-01-25Title: RF Cafe Calculator Workbook Author: Kirt Blattenberger Description: Unlocked version available. Last modified

Rectangular Cavity Resonance

ModeResonant

m n p Frequency Dimensions (a<b<c)0 1 1 7.50 GHz a: 1.30 cm1 0 1 12.04 GHz b: 2.25 cm1 1 0 13.32 GHz c: 4.34 cm1 1 1 13.76 GHz e: 8.854E-12 F/m0 1 2 9.60 GHz m: 1.257E-06 H/m1 0 2 13.44 GHz1 1 2 15.00 GHz0 2 2 15.01 GHz2 0 2 24.07 GHz2 2 0 26.63 GHz2 2 1 26.86 GHz

RF Cafe Calculator Workbook, v5.1, by RF Cafe

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TEm,n,p & TMm,n,p

Home

b, n

a, m

c, p

e, m

Page 16: RF Cafe Calculator Workbook - · XLS file · Web view · 2008-01-25Title: RF Cafe Calculator Workbook Author: Kirt Blattenberger Description: Unlocked version available. Last modified

VSWR Conversions & Mismatch

Conversions VSWR Mismatch Effects

VSWR: 1.20 :1 VSWR A VSWR BReturn Loss: 20.83 dB 2.5 :1 2 :1

G: 0.09 0.428571 0.333333Amplitude Error: +1.16 / -1.34 dB

VSWR: 1.20 :1 Phase Error: ± 8.19 °Return Loss: 20.83 dB Max VSWR: 5.00 :1

G: 0.09 Min VSWR: 1.25 :1

VSWR: 1.20 :1 VSWR Reduction By Matched AttenuatorReturn Loss: 20.92 dB

G: 0.09 Attenuator Load VSWR3 dB 2 :1

15.54243 9.542425Improved VSWR Note: This only holds exactly

1.40 :1 when the attenuator is aperfect VSWR match (1:1)

RF Cafe Calculator Workbook, v5.1, by RF Cafe at both ports.

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Page 17: RF Cafe Calculator Workbook - · XLS file · Web view · 2008-01-25Title: RF Cafe Calculator Workbook Author: Kirt Blattenberger Description: Unlocked version available. Last modified

Resistive Voltage Divider

Vcc: 10 V

R1: 500 Ω50.00 mW

Vout: 5.00 VI: 10.00 mA

R2: 1000 Ω100.00 mW 1000 Ω

100.00 mW

Vee: 0 V 500

RF Cafe Calculator Workbook, v5.1, by RF Cafe

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Page 18: RF Cafe Calculator Workbook - · XLS file · Web view · 2008-01-25Title: RF Cafe Calculator Workbook Author: Kirt Blattenberger Description: Unlocked version available. Last modified

RF Cafe Calculator WorkbookRevision History

Version Description1.0 Initial release.2.0 Added Rectangular Cavity, Coils3.0 Added Cascaded Components, Mixer Frequency Conversion4.0 Added Directional Couplers5.0 Added Propagation Time5.1 Corrected straight wire inductor formula

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Disclaimer: Your use of this RF Cafe Calculator Workbook indicates that you accept full responsibility for the results produced, and that you agree to hold harmless Kirt Blattenberger, RF Cafe, and it assigns, for any damages that may result from its use.

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