𝔖 Bobbio Scriptorium
✦   LIBER   ✦

A new approach to the design of a compact high efficiency active integrated antenna

✍ Scribed by S. F. Ooi; S. K. Lee; A. Sambell; E. Korolkiewicz; S. Scott


Publisher
John Wiley and Sons
Year
2008
Tongue
English
Weight
381 KB
Volume
50
Category
Article
ISSN
0895-2477

No coin nor oath required. For personal study only.

✦ Synopsis


Abstract

In this letter, two active integrated antenna (AIA) circuits employing an H‐shaped patch antenna operating at 2.45 GHz are presented. In the first design a probe feed position on the antenna is found to give an input impedance of 50 Ξ© at the fundamental frequency. For the second design a probe feed position is found to give the optimum impedance at the fundamental frequency. Hence the load matching network is eliminated. Each circuit achieved a measured power added efficiency (PAE) of over 67%. Β© 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 585–589, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23156


πŸ“œ SIMILAR VOLUMES


A New Approach to the Evaluation of Stab
✍ Ashustosh Kumar; Sophie Commereuc; Vincent Verney; Pierre Lajoie; Jacques Lacost πŸ“‚ Article πŸ“… 2004 πŸ› John Wiley and Sons 🌐 English βš– 117 KB

## Abstract **Summary:** Elastomers are very sensitive to oxidative degradation due to the combined effect of light and oxygen. Hence, we investigate the impact of stabilizers on the evolution of molecular structure of elastomers through photo‐oxidation. While a dual processes is generally reported

A QUADRATIC PROGRAMMING APPROACH TO THE
✍ D.J. Leo; D.J. Inman πŸ“‚ Article πŸ“… 1999 πŸ› Elsevier Science 🌐 English βš– 154 KB

A quadratic programming algorithm is presented for studying the design tradeoffs of active-passive vibration isolation systems. The novelty of the technique is that the optimal control problem is posed as a quadratic optimization with linear constraints. The quadratic cost function represents the me

A Simple Approach to the Design of a Shi
✍ Charles Gasparovic; Miquel CabaΓ±as; Carles ArΓΊs πŸ“‚ Article πŸ“… 1995 πŸ› Elsevier Science 🌐 English βš– 185 KB

A simple approach to the design of a shielded gradient coil set longitudinal gradients may appear straightforward to the for a high-resolution NMR probe is described in detail. An Appennovice. In particular, one must decide whether a simple Maxdix is provided that shows the step-by-step Mathematica