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2 years ago in Antenna Miniaturization By Simanghi
For an electrically small VHF antenna, can meanderline loading achieve a significant reduction in kaQ product compared to a simple straight dipole, approaching the Chu limit?
I'm designing a compact antenna for 100 MHz where physical height is constrained. Meanderlines are supposed to increase the electrical length. While they reduce the antenna's physical size (lower 'a'), do they also effectively lower the radiation Q, or do they actually increase losses and resistive loading, resulting in a worse overall kaQ product? Is there a point of diminishing returns where more meandering hurts efficiency more than it helps miniaturization? What does the theoretical limit look like for an optimally meandered dipole?
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By Hema Answered 1 year ago
For an engineering ethics course, I recommend focusing on the three dominant typologies of normative ethics, which provide distinct decision-making lenses: 1) Consequentialism (exemplified by Utilitarianism), which judges actions solely by their outcomes—the greatest good for the greatest number. 2) Deontology (exemplified by Kant), which judges actions by their adherence to rules, duties, and principles (like respect for persons), regardless of outcomes. 3) Virtue Ethics (exemplified by Aristotle), which focuses on the character of the moral agent and cultivating virtues like honesty and courage. Contractarianism and ethics of care are important but can be framed as extensions or critiques of these core three. This triad gives students a robust, manageable toolkit for ethical analysis.
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