𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Accurate expressions for directivity of a circular microstrip antenna on suspended and composite substrates

✍ Scribed by A. K. Verma; Nasimuddin; A. S. Omar


Publisher
John Wiley and Sons
Year
2003
Tongue
English
Weight
88 KB
Volume
38
Category
Article
ISSN
0895-2477

No coin nor oath required. For personal study only.

✦ Synopsis


Abstract

We present two sets of simple and accurate closed‐form expressions to compute the directivity of a circular microstrip antenna on suspended and composite substrates. The results have been compared with the results computed by the method of moments (MoM)‐based commercial software Ensemble. Both models follow each other and are in good agreement with Ensemble. © 2003 Wiley Periodicals, Inc. Microwave Opt Technol Lett 38: 85–87, 2003


📜 SIMILAR VOLUMES


Closed-form expressions for accurate det
✍ A. K. Verma; Raj Kumar; Manu Sharma 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 206 KB

Figure 4 Measured field patterns for s s 1.5 mm and y s 4 mm: d Ž . Ž . a H plane, b E plane. The parameters are as in Figure 2. solid line, 3.30 GHz; dot-dashed line, 4.03 GHz; dashed line, 4.75 GHz Figure 5 Measured antenna gain versus frequency for the stacked structure and for the single element

A simple and accurate expression for the
✍ K. Guney 📂 Article 📅 2003 🏛 John Wiley and Sons 🌐 English ⚖ 90 KB

## Abstract A new, very simple closed‐form expression for computing the bandwidth of rectangular microstrip antennas with thick substrates is presented. It is obtained by means of a curve‐fitting technique, and is useful for the computer‐aided design of microstrip antennas. The theoretical bandwidt

Accurate development of the UPML absorbi
✍ Laurent Cirio; Alexandre Richardson; Odile Picon 📂 Article 📅 2005 🏛 John Wiley and Sons 🌐 English ⚖ 196 KB

We present a theoretical investigation and application of an unsplit formulation of the perfectly matched layer absorbing boundary conditions (PML ABC), developed here especially for lossy-media FDTD simulations. From the uniaxial PML (UPML) theory, and unlike Berenger's technique, in this paper the