Figure - available from: International Journal of Antennas and Propagation
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Measured antenna peak gain and radiation efficiency: (a) GSM850/900, (b) DCS1800/PCS1900/UMTS/WLAN 11.b/LTE2300/2500, and (c) IMT-A.
Source publication
A novel planar inverted-F antenna (PIFA) with dual-shorting points is proposed for multiband mobile handsets. The antenna comprises a meandered strip, a feeding point, two shorting points,
and a slotted ground plane. For bandwidth enhancement of DCS/PCS/UMTS/WLAN 11.b/LTE2300/2500 and IMT-Advanced (International Mobile Telecommunications-Advanced)...
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Citations
... Hence, there is a need for compact multiband antenna design approach to cover these several frequency bands. Planar inverted-F antenna (PIFA) has been a popular candidate in portable wireless systems due to its appealing features, such as low-profile, ease of fabrication, and robustness [6,7], and it does not require any matching network when connected with the 50 Ω coaxial input [8]. A wide range of multiband PIFA designs for wireless applications is found in the literature [9][10][11][12][13][14]. ...
5G, the fifth generation of wireless communications, is focusing on multiple frequency bands, such as 6 GHz, 10 GHz, 15 GHz, 28 GHz, and 38 GHz, to achieve high data rates up to 10 Gbps or more. The industry demands multiband antennas to cover these distant frequency bands, which is a task much more challenging. In this paper, we have designed a novel multiband split-ring resonator (SRR) based planar inverted-F antenna (PIFA) for 5G applications. It is composed of a PIFA, an inverted-L parasitic element, a rectangular shaped parasitic element, and a split-ring resonator (SRR) etched on the top plate of the PIFA. The basic PIFA structure resonates at 6 GHz. An addition of a rectangular shaped parasitic element produces a resonance at 15 GHz. The introduction of a split-ring resonator produces a band notch at 8 GHz, and a resonance at 10 GHz, while the insertion of an inverted-L shaped parasitic element further enhances the impedance bandwidth in the 10 GHz band. The frequency bands covered, each with more than 1 GHz impedance bandwidth, are 6 GHz (5–7 GHz), 10 GHz (9–10.8 GHz), and 15 GHz (14-15 GHz), expected for inclusion in next-generation wireless communications, that is, 5G. The design is simulated using Ansys Electromagnetic Suite 17 simulation software package. The simulated and the measured results are compared and analyzed which are generally in good agreement.
... The planar inverted-F antenna (PIFA) has become the most popular antenna for mobile phones, because it has many outstanding advantages like compact structure, light weight, small size, low manufacturing cost, being integrated with other handset components, good electrical performance, good radiation characteristics, high gain, and low value of the specific absorption rate (SAR), and so forth [3,4]. In addition, several works of literature have proposed miniature structures of multiband PIFA by inserting the slots in the radiating patch and in the ground plane [5][6][7][8][9][10]. ...
A new compact multiband PIFA (Planar Inverted-F Antenna) for mobile handset is proposed in this article. The proposed PIFA has a simple geometry with four slots integrated in the radiating patch and ground plane. The PIFA occupies a small volume of 51 × 14 × 7.2 mm ³ and is placed on the top portion of mobile phone. The optimized PIFA is worked in the 790 MHz band (737–831 MHz), the 1870 MHz band (1794–1977 MHz), the 2550 MHz band (2507–2615 MHz), and the 3400 MHz band (3341–3545 MHz), to cover LTE700, LTE800, DCS1800, PCS1900, LTE1800, LTE1900, LTE2500, and WIMAX3400 bands. Each of the four operating bands can be controlled independently by the variation of a single parameter of the proposed design, with a wide control range. An omnidirectional radiation pattern to each resonant frequency is obtained with a maximum gain of 2.15 dBi at 790 MHz, 3.99 dBi at 1870 MHz, 4.57 dBi at 2550 MHz, and 6.43 dBi at 3400 MHz. The proposed PIFA is studied in the free space and in the presence of other mobile phone components such as the battery, LCD (liquid crystal display), camera, microphone, speaker, buttons, and a plastic housing. The distribution of specific absorption rate for both European and American standards for each operating band and at various distances between the antenna and the human head is also studied.
... Meandered PIFA has been generally employed for further size reduction, multiband implementation, achieve high gain, and enhanced bandwidth. In this paper a compact, low profile quad-band meandered PIFA antenna is presented [9]. ...
In this paper a quad band compact meandered PIFA antenna for various wireless applications is proposed. The proposed antenna is designed as meandered PIFA Antenna in order to obtain high gain, wide bandwidth, multiband and good efficiency. The method of using meandered slits on top radiating patch is use to increases the gain and further reduces the size of conventional PIFA antenna. It also enhanced the bandwidth and current path of the antenna. The proposed antenna is only 20mmx10mm in area and built on a very small ground plane of size 60mm x 40mm using FR4 substrate of thickness 1.57mm. The proposed antenna covers GPS, UMTS, WiMAX, HiperLAN/2 and ISM bands. The simulation results are analyzed with the help of HFSS software. Following parameters of the antenna, including structure of the proposed antenna, return loss, quad-band frequencies, bandwidth, and simulated distribution of current density, radiation patterns are presented and discussed. It is also noted that proposed antenna obtained very high gain of 26.4689dB.
... In recent years, mobile communication requires a handheld mobile device to function on multiple communication systems which has made the multiband mobile antenna increasingly important [1][2][3]. In view of the growth of consumer demands for speed and bandwidth, the fourth generation of long-term evolution (LTE) mobile communication technology has been developed. ...
A novel internal printed antenna suitable for triple long-term evolution (LTE) bands for handheld devices is presented. The operating bandwidths of the design are LTE700 (698~800 MHz), LTE2300 (2300~2400 MHz), and LTE2500 (2500~2690 MHz). Through the use of a C-shape broadside coupled feed structure, full operation in the lower band is achieved. The antenna itself uses two unequal path lengths to produce a low frequency band with two resonant modes. The required bandwidth is then adjusted using a couple feed, and finally placed over a ground plane via another C-type coupling element in order to enhance the two low-frequency matches. In the definition of the −6 dB reflection coefficient, the bandwidth of two basic modes in the low frequency band is 0.689~0.8 GHz. We adopt the definition of the −10 dB reflection coefficient for the high frequency mode, and its working frequency bands are shown to be 2.3~2.72 GHz. The antenna size is only 40 × 12 × 0.8 mm
3
with a ground plane of 98 × 40 mm
2
.
Planar inverted F antenna (PIFA) is mainly fit for mobile devices. PIFA is mostly designed for dual band frequencies as it is capable of covering wide range of wireless services. This in turn helps in making it acceptable for designing mobile devices. Sizes of ground plane as well as PIFA’s position with respect to ground plane actually effect the performance of PIFA. For example, placement of PIFA at corner of ground plane shows good radiation pattern. Major prerequisite of 5G is nothing but the capability to enhance data volume to every single user, while supporting majority of mobile users as well as new maneuvers. The best part is advanced antenna array technologies are able to meet such requirements. Although PIFA antenna has gained popularity in designing mobile handsets, because of light weight, lower cost as well as higher directivity, PIFA antenna Arrays have been proved to be strong foundation for future 5G Mobile Communication Systems as PIFA Arrays provide better gain than single PIFA antenna in same frequency band. Current work presents a comprehensive study on so far impact of PIFA as well as PIFA Array in providing infrastructure for future mobile innovations suitable for 5G communication.
