jEMLab
| Category | Price | Seller | Device |
|---|---|---|---|
| Education | $0.99 | Nathan Champagne | iPhone, iPad, iPod |
Students select a lab from a list of available labs that are displayed at startup. The labs include the following:
Smith Chart Laboratory - helps with visualizing information displayed on a Smith Chart and quantities calculated using a Smith Chart.
Transmission Line Laboratory - simulates the normalized voltage and current standing wave patterns on a transmission line with the reflection coefficient plotted on a Smith Chart.
Shunted Transmission Line Laboratory - simulates the normalized voltage and current standing wave patterns on a transmission line with a tuning stub connected in parallel.
Incident Plane Wave Laboratory - simulates a uniform plane wave incident on an interface between two media.
Time Domain Reflectometry Laboratory - simulates pulses traveling on a transmission line composed of a couple segments.
Uniform Array Laboratory - simulates the array factor for a uniform array of linear antenna elements.
Nonuniform Array Laboratory - simulates the array factor for binomial and Dolph-Tschebyscheff arrays.
Dipole Antenna Laboratory - simulates the far-field pattern and current distribution for a dipole antenna.
Dipole Antenna over Ground Laboratory - simulates the far-field pattern for a dipole antenna above a lossy or perfectly conducting ground plane.
Polarization Laboratory - simulates the polarization of a plane wave.
Spherical Charge Laboratory - simulates the electric field and potential due to electric charge.
Helix Antenna Laboratory - simulates the far-field pattern for the axial mode of a single-arm helix antenna.
Sectoral Horn - simulates the far-field patterns of an E-plane and H-plane sectoral horn.
Pyramidal Horn - simulates the far-field patterns of a pyramidal horn.
Please go to the Web site for further information, including annotated screenshots of the laboratories. If you have a problem, please check the FAQ before contacting us.
Reviews
Decent App
ny6u
This application is useful and informative taking the tedium out of the calculations. The TDR section has no way of returning back to the main window after entering values. It would be nice to see calculated feedpoint impedance in the dipole sections.
This is amaaaaazing
Engineering student
I went into my test not knowing anything!! I used this app and cheated and got 100! Thanks em waves guy!
Pretty cool, could become great utility
iPhone Missionary
Some nice demos, could become a great RF utility if you could do things in return loss/ VSWR instead of reflect. coefficient; either have all, or make units selectable via preferences. Other useful labs would be: views of VSWR in dBs as well as voltage; maybe signal ripple (dB p-p) vs. Coherent Interferer signal level (level defined via slider); antenna gain & beamwidth vs. Dish size, frequency.
Excellent app!
James clerk's demon
I work in the field of applied electromagnetics, and this is the only app I have found that covers a broad range of topics effectively. The interface for each lab is very intuitive, and the app is especially useful for students taking their first electromagnetics courses. I highly recommend it!
Display cut off
Emc321
The entire right side of the display is cut off. The labs are basically the applicable formulas and graphs. There is no text or explaination of any of the concepts. Only 4 main topics.
