Compact self‐complementary antenna for ultra‐wideband applications

Abstract

A self‐complementary antenna for ultra‐wideband (UWB) is proposed.The proposed antenna has a compact size of 25 × 15 mm and covers the specification for UWB operation in the 3.1–10.6‐GHz bands. It has been proven that the proposed compact antenna can generate UWB and reasonable radiating properties. Details of the proposed antenna design and experimental results are presented and discussed. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:2144–2146, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27005

Broadband multiple‐input–multiple‐output antenna using castor leaf‐shaped quasi‐self‐complementary elements

“…The development of QSCA has grown the family of SCAs to a higher level. In [6][7][8][9], the conducting patch and complementary slot of QSCA are designed on opposite sides of substrate and impedance matching is achieved using a microstrip line feed. The single-sided QSCA [10,11], which has both the patch and its complementary slot on same side of substrate, is fed using coplanar waveguide (CPW).…”

Rectangular quasi‐self‐complementary antenna for wlan applications

“…The antenna was fabricated on an FR4 dielectric substrate with a relative permittivity of 4.4, a loss tangent of 0.02, dimensions of 35 × 20 mm 2 , and a thickness of 0.8 mm. To possess a wide impedance bandwidth, a rectangular self‐complementary radiating structure was adopted . A rectangular patch (15 × 8.5 mm 2 ) is fed by a 50‐Ω microstrip transmission line with 1.5 mm in width and 19.5 mm in length.…”

“…A parasitic inverted L‐shaped slit connected to the ground plane was 0.5 mm in width and 24 mm in length. Furthermore, a notch on the ground plane was used for impedance matching . To achieve a controllable dual‐band function, a rectangular parasitic element ( L 1 × W 1 ) was printed and connected to the ground plane with a stub (2 × 0.5 mm 2 ).…”

“…Based on our previous works, we integrate the notions of a self‐complementary structure and a rectangular parasitic element to excite a destructive interference for band‐rejected capability in this letter. The proposed antenna is composed of a rectangular radiating patch, its complementary metal structure (a parasitic inverted L‐shaped slit) connected to the ground plane, and a rectangular parasitic element.…”

Quasi-self-complementary ultra-wideband antenna with band rejection characteristics

“…The input impedance of such type of antenna is generally characterized by its constant input impedance of 188.5 V. In spite of all the impressive aforementioned prospects, an additional impedance matching circuit is required to transform input impedance from 188.5 to 50 V in order to make it integrated with the RF front end [4][5][6][7]. In previous literatures, several types of self-complementary or quasi-self-complementary configuration have been explained for UWB application, such as half circular disk types [8], stepped triangular type [9], rectangular type [10], fractal BOW-TIE type [11], circular disk type [12], crossbar fractal type [13], horn-shaped self-complementary structure [14]. In this article, a novel design of microstrip line-fed quasi-selfcomplementary semi-octagonal band-notched UWB antenna is explained.…”