Randy L. Haupt
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View article: Masthead
Masthead Open
View article: A Silver Lining [Ethically Speaking]
A Silver Lining [Ethically Speaking] Open
The term silver lining originated from the 1634 poem “Comus” by John Milton. It describes the glistening edges of a cloud that blocks the sun. The term is used to emphasize the positive aspects of a very negative situation. In 1979, I …
View article: Adaptive Beamforming With Software-Defined-Radio Arrays
Adaptive Beamforming With Software-Defined-Radio Arrays Open
Digital beamforming is the holy grail of antenna array technologies, however implementing digital beamforming into practical antenna arrays has been slow due to hardware complexity and cost. We propose a relatively inexpensive new approach…
View article: 2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting
2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting Open
Near-field radiative Wireless Power Transfer (WPT)has the advantage of high-power WPT. In this paper, an all textile high-power WPT receiver is realized for the first time, using an embroidered coil and a printed tuning capacitor on a text…
View article: Low Discrepancy Sparse Phased Array Antennas
Low Discrepancy Sparse Phased Array Antennas Open
Sparse arrays have grating lobes in the far field pattern due to the large spacing of elements residing in a rectangular or triangular grid. Random element spacing removes the grating lobes but produces large variations in element density …
View article: Artificial Intelligence in Electromagnetics [Guest Editorial]
Artificial Intelligence in Electromagnetics [Guest Editorial] Open
Artificial intelligence (AI) attributes a positive human quality (intelligence) to a machine, thus making it artificial. AI has the potential for "good" and "bad." This issue of IEEE Antennas and Propagation Magazine (APM) offers three "go…
View article: IEEE Antennas and Propagation Society Symposium
IEEE Antennas and Propagation Society Symposium Open
the Hyatt Regency and Grand Hyatt, in
View article: Ethically speaking: Silver lining
Ethically speaking: Silver lining Open
The term “silver lining” originated from the 1634 poem “Comus” by John Milton. It describes the glistening edges of a cloud that blocks the sun. We use it when emphasizing the positive aspects of a very negative situation.
View article: Reconfigurable 4-Arm Spiral Antenna for Dual Polarization
Reconfigurable 4-Arm Spiral Antenna for Dual Polarization Open
International audience
View article: Whataboutery [Ethically Speaking]
Whataboutery [Ethically Speaking] Open
Discusses the reaction is known as whataboutery, or whataboutism, which refers to responding to a hard question or accusation by making a different accusation or changing the subject. The name is derived from a typical response to an accus…
View article: Table of Contents
Table of Contents Open
View article: Ethically speaking: Reprioritization
Ethically speaking: Reprioritization Open
About 25 years ago, my good friend Tim and I decided to cross-country ski to a cabin in the Colorado mountain backcountry. The cabin was located at about 3500 m above sea level, and was far from any roads. Tim was in charge of the United S…
View article: Cellular Generations
Cellular Generations Open
View article: Bluetooth
Bluetooth Open
View article: Software‐Defined Radios
Software‐Defined Radios Open
View article: Ethically speaking: First things first
Ethically speaking: First things first Open
On our honeymoon, my wife and I took a bike ride through Shark Valley in Everglades National Park, Florida. While we did not see any sharks, the place was crawling with alligators. As we merrily peddled along, a breeze came through and ble…
View article: Staff Listing
Staff Listing Open
View article: The Owl: Follow-Through Is Critical [Ethically Speaking]
The Owl: Follow-Through Is Critical [Ethically Speaking] Open
Discusses the complex issues that are involved with problem solving that include critical thinking, ethics, resourcefulness, creativity, and collaboration among people with diverse skills.
View article: Ethically speaking: True colors
Ethically speaking: True colors Open
I have two- and four-year-old granddaughters who love holidays and celebrations. This past holiday season, my daughter got both girls their own miniature Christmas trees to decorate. This allowed my daughter to decorate the large tree whil…
View article: THE AXIAL RATIO OF PLANAR ARRAYS WITH RANDOM ELEMENT ERRORS
THE AXIAL RATIO OF PLANAR ARRAYS WITH RANDOM ELEMENT ERRORS Open
View article: Resonances in Receiving Two-Arm Spiral Antennas
Resonances in Receiving Two-Arm Spiral Antennas Open
A planar array of symmetrical square spiral antennas over a ground plane have resonances when scanning off-broadside. This paper demonstrates that resonances also appear in a single symmetrical receiving spiral antenna without a ground pla…
View article: Ethical Boxes [Ethically Speaking]
Ethical Boxes [Ethically Speaking] Open
Linear programing optimizes a linear model having linear constraints. The li near constraints are inequalities that form boundaries or the sides of the solution box. A corner point occurs at the vertex of the box (a polygon). If an optimum…
View article: Ethically speaking: A coconut deception
Ethically speaking: A coconut deception Open
Sue (wife/mother of the authors of this article) was strolling along a beach in Mexico when she got hit in the head by a coconut. Did you know that coconuts actually severely injure people, and may even cause death when they hit someone on…
View article: Ethically speaking: Ethical boxes
Ethically speaking: Ethical boxes Open
I guess you can call me a box collector. I save almost all of the boxes that we get from Amazon and put them in our basement. Whenever we send presents to grandchildren or other relatives, I pick out an appropriately sized box to contain t…
View article: Ethically speaking: Ethical directions
Ethically speaking: Ethical directions Open
When I first started driving, getting from one place to another was completely different than it is today. I remember driving from Massachusetts with my wife to attend a friend's wedding in Pennsylvania in 1980. We used a map to get us fro…
View article: Pulse Dispersion in Phased Arrays
Pulse Dispersion in Phased Arrays Open
Phased array antennas cause pulse dispersion when receiving or transmitting wideband signals, because phase shifting the signals does not align the pulse envelopes from the elements. This paper presents two forms of pulse dispersion that o…
View article: Timed Arrays: Wideband and Time Varying Antenna Arrays
Timed Arrays: Wideband and Time Varying Antenna Arrays Open
Introduces timed arrays and design approaches to meet the new high performance standards The author concentrates on any aspect of an antenna array that must be viewed from a time perspective. The first chapters briefly introduce antenna ar…
View article: List of Symbols and Abbreviations
List of Symbols and Abbreviations Open