Antenna Miniaturization with MEMS Tunable Capacitors: Techniques and Trade-Offs

Abstract

In today’s mobile device market, there is a strong need for efficient antenna miniaturization. Tunable antennas are a very promising way to reduce antenna volume while enlarging its operating bandwidth. MEMS tunable capacitors are state-of-the-art in terms of insertion loss. Their characteristics are used in this investigation. This paper uses field simulations to highlight the trade-offs between the design of the tuner and the design of the antenna, especially the impact of the location of the tuner and the degree of miniaturization. Codesigning the tuner and the antenna is essential to optimize radiated performance.

Optimization and Design of Wideband Antenna Based onQFactor

“…As each grid contains several triangles corresponding to some basis functions, removal or retention of these grids can be converted to removal or retention of basis functions. 𝑁𝑃 (the number of individuals) in (5) and 𝑇 (the maximum generation) in ( 10) are all set to 20. In (9), 𝐷 (length of code) is 148.…”

“…In this paper, we attempt to achieve the following goals. (1) The size of fabricated antenna is as small as possible [5,6]. (2) The desired antenna bandwidth is as wide as possible.…”

U Patch Antenna using Variable Substrates for Wireless Communication Systems

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