Performance Evaluation of Rectangular Microstrip Patch Antennas Loaded with Plastic and Barium-Titanate Substrates at GSM 1800 MHz Band

• 作者: M. Shah Alam Mohammad Ababil Hossain
• 来源期刊: 天线与传播(英文)
• 学科: 医学
• 关键词: PATCH ANTENNAS Size Reduction BARIUM TITANATE GSM BANDS
• 年，卷（期）: 2018,（3）
• 页码范围: 36-42
• 页数: 7页
• 分类号: R73

摘要

In this paper, the resonance and radiation characteristics of patch antennas fabricated with two different types of dielectric substrates have been investigated and compared at GSM 1800 MHz band. At first, the above-stated characteristics of a patch antenna loaded with conventional plastic substrate have been investigated. Later a high permittivity dielectric material (barium titanate) has been used as the antenna substrate. The main goal here is to reduce the antenna size with a high permittivity dielectric material and then to compare its resonance and radiation performance with the earlier low permittivity substrate loaded prototype. It is found that with the use of high permittivity substrate the antenna volume gets smaller (about 6% of the plastic substrate prototype) although the gain decreases by around 2.5 dB.