Abstract: A rotational antenna includes a stationary feed which is disposed in a substantially vertical orientation. A parabolic dish is rotationally mounted about the stationary feed in a state of being tipped with respect to the stationary, substantially vertically oriented feed. The rotational parabolic antenna may alternatively be provided with a rotating radio frequency (RF) and acoustic feed. Other embodiments are disclosed.

Abstract: A rotational antenna includes a stationary feed which is disposed in a substantially vertical orientation. A parabolic dish is rotationally mounted about the stationary feed in a state of being tipped with respect to the stationary, substantially vertically oriented feed. The rotational parabolic antenna may alternatively be provided with a rotating radio frequency (RF) and acoustic feed. Other embodiments are disclosed.

Abstract: A rotational antenna includes a stationary feed which is disposed in a substantially vertical orientation. A parabolic dish is rotationally mounted about the stationary feed in a state of being tipped with respect to the stationary, substantially vertically oriented feed. The rotational parabolic antenna may alternatively be provided with a rotating radio frequency (RF) and acoustic feed. Other embodiments are disclosed.

Abstract: An N-way RF/microwave power divider/combiner utilizes one input and N outputs, or conversely N inputs and one output to divide (or combine) RF/microwave power while simultaneously and non-invasively measuring reflected power present due to mismatched loads or other failed components. The Gysel divider/combiner technique is used with the addition of N temperature measuring devices placed directly on the N isolation loads separated from the main divider/combiner lines. Because of high isolation between the N channels of the divider/combiner, the temperature above ambient of each isolation load is strongly correlated to the amount of power reflected back to an output port. The temperature is sensed external to the RF circuit whereby a measure of reflected power can be made without the use of invasive directional-coupler techniques. This is highly advantageous since directional-coupler techniques would increase the insertion-loss, cost, and complexity of the divider/combiner.