Design of Multiband Quad-Rectangular Shaped Microstrip Antenna for Wireless Applications.

Abstract

Abstract-This paper presents a Quad-Rectangular Shaped Microstrip Antenna (QRSMA) fed by a single microstrip line feed. QRSMA having different frequency bands is designed to be applied to L (1-2 GHz), S (2-4 GHz) and C (4-8 GHz) bands applications. QRSMA is loaded with a single square patch and 4 rectangular patches. The patches are loaded using a flame retardant substrate (Fr-4). The patches are connected with 1 mm width of copper (Cu) strip-line. Thus the proposed design of patches and width is responsible for desired multiband operations. The antenna resonates at frequencies f 1 = 1.074, f 2 = 3.119, f 3 = 4.089, f 4 = 5.683 and f 5 = 6.514 GHz. Thus, the antenna is useful in the L, S and C band applications. Compared to other antenna designs, the proposed antenna exhibits multiband performance, size reduction and is economical. It also realizes tunability of frequencies having stable radiation pattern with compact electrical size. The paper analyses the simulated and experimental results. Various cases of QRSMA performances are also compared in this paper.

Wide-Band Log-Periodic Microstrip Antenna With Defected Ground Structure for C-Band Applications

“…Research in the area of microstrip antennas is advancing due to their thin planar profile, ease of surface mounting on missiles and aircrafts [1,2], ease of fabrication process [3][4][5], and ease of integrating the antenna on the same printed board with other components, especially in mobile radio communication devices [6][7][8]. The most common type of microstrip antenna is three-layered patch antenna with square [9], circular [10], rectangular [11,12], elliptical [7,8], or any other shaped patch [13] with matched feed line on the top, middle dielectric layer separating the bottom ground plane from the top layer. The antennas with microstrip patches can find applications in GPS [10,14,15], mobile devices [7,8,[11][12][13]17], WLAN [5,11,[13][14][15][16], and WiMax [5,13,15,16].…”

“…The most common type of microstrip antenna is three-layered patch antenna with square [9], circular [10], rectangular [11,12], elliptical [7,8], or any other shaped patch [13] with matched feed line on the top, middle dielectric layer separating the bottom ground plane from the top layer. The antennas with microstrip patches can find applications in GPS [10,14,15], mobile devices [7,8,[11][12][13]17], WLAN [5,11,[13][14][15][16], and WiMax [5,13,15,16]. The patch antennas are found to have low gain and narrow bandwidth [12][13][14][15].…”

“…The antennas with microstrip patches can find applications in GPS [10,14,15], mobile devices [7,8,[11][12][13]17], WLAN [5,11,[13][14][15][16], and WiMax [5,13,15,16]. The patch antennas are found to have low gain and narrow bandwidth [12][13][14][15]. The concept of log-periodic structure is often utilized to achieve the broad-band performance of antenna in microwave and THz frequency range [18][19][20][21][22].…”

Quintuple Band Antenna for Wireless Applications with Small Form Factor

“…The design of quadruple and pentaband antennas has also gained considerable interest. In this regard, a quad-rectangular shaped microstrip antenna operating at frequencies of 1.074, 3.119, 4.089, 5.683, and 6.514 GHz is presented in Saroj et al [15]. Moreover, in Ali et al [16], a novel quad-band antenna operating at the global navigation satellite system, lower WiMAX, upper WLAN, and X-band for satellite communication using FR4 material is developed.…”

A reconfigurable multiband rhombic shaped microstrip antenna for wireless smart applications

“…The proposed microstrip antenna design is loaded on FR-4 (Grade Four) substrate due to ease of fabrication and availabilities. [29][30][31][32][33][34][35][36][37] This proposed design also compared with some earlier published literature to show the novelty of present work. [38][39][40]…”