Reflex Klystron Calculator Reflex Klystron Calculator Operating Frequency (GHz): DC Beam Voltage (V): DC Beam Current (mA): Mode Number (N): Repeller Spacing (m): Calculate Recalculate Derived formulas approximate reflex klystron performance for typical laboratory conditions.
RF Power Density Calculator RF Power Density Calculator Calculate the RF power density using: \[ S = \frac{P}{4\pi r^2} \] where \(P\) is the transmitted power (W) and \(r\) is the distance (m). * Enter the power in watts and the distance from the source in meters. Step 1: Enter Parameters Transmitted Power, \( P […]
Slotline-Waveguide Wavelength Calculator Slotline-Waveguide Wavelength Calculator Calculate the guided wavelength using: \[ \lambda_g = \frac{\lambda_0}{\sqrt{1-\left(\frac{f_c}{f}\right)^2}} \] where \(\lambda_0 = \frac{0.3}{f}\) (m) for an operating frequency \(f\) (GHz). * Enter the operating frequency \( f \) (GHz) and the cutoff frequency \( f_c \) (GHz). (Ensure that \( f > f_c \).) Step 1: Enter Parameters […]
Wind Pressure on Transmission Line Calculator Wind Pressure on Transmission Line Calculator Calculate the wind pressure using: \[ q = 0.5\,\rho\,V^2 \] where \( \rho \) is the air density and \( V \) is the wind speed. * Enter the wind speed in m/s and the air density in kg/m³ (default is approximately 1.225 […]
Sag of Transmission Line Calculator (Same Height Supports) Sag of Transmission Line Calculator Calculate the sag of a transmission line with supports at the same height using: \[ f \approx \sqrt{\frac{3L(S-L)}{8}} \] * Enter the horizontal span \( L \) (m) and the total cable length \( S \) (m). Note that \( S \) […]
Power Transfer Capability Calculator Power Transfer Capability Calculator Calculate the power transfer capability using the equation: \[ P = \frac{V_1V_2}{X}\sin(\delta) \] * Enter the sending-end voltage \( V_1 \) (kV), receiving-end voltage \( V_2 \) (kV), line reactance \( X \) (Ω), and power angle \( \delta \) (°). Step 1: Enter Parameters Sending-End Voltage, […]
Sag of Transmission Line Calculator Sag of Transmission Line Calculator Calculate the sag of a transmission line with supports at different heights using the approximate formula: \[ f \approx \sqrt{\frac{3L\,(S-L)+(H_2-H_1)^2}{8}} – \frac{\left|H_2-H_1\right|}{2} \] * Enter the horizontal span \( L \) (m), left support height \( H_1 \) (m), right support height \( H_2 \) […]
Dipole Antenna Length Calculator Dipole Antenna Length Calculator Calculate the total length of a half-wave dipole antenna using the rule-of-thumb: \[ L_{\text{ft}} = \frac{468}{f \,(\text{MHz})} \] and convert to meters. * Enter the operating frequency in MHz. Step 1: Enter Frequency Frequency, \( f \) (MHz): Example: 14.0 MHz Calculate Dipole Length Dipole Antenna Length […]
Parabolic Dish Antenna Calculator Parabolic Dish Antenna Calculator Calculate the gain of a parabolic dish antenna using the formula: \[ G = \eta \left(\frac{\pi D}{\lambda}\right)^2 \quad \text{and} \quad G_{\text{dB}} = 10\log_{10}\left(G\right) \] * Enter the dish diameter \( D \) (m), efficiency \( \eta \) (0–1), and wavelength \( \lambda \) (m). Step 1: Enter […]
Antenna Beamwidth Calculator Calculate the half-power beamwidth (HPBW) using the approximate formula: \[ \theta \approx \frac{70\,\lambda}{D} \] * Enter the wavelength \( \lambda \) (m) and antenna aperture diameter \( D \) (m). Step 1: Enter Parameters Wavelength, \( \lambda \) (m): Example: 0.03 m (3 cm) Aperture Diameter, \( D \) (m): Example: 1 […]