A wideband 60GHz chip antenna

Nakajima, Masayuki; Sudo, Kaoru; Fujii, H.; Kobayashi, Eiichi; Hiratsuka, Toshiro

doi:10.1109/apmc.2012.6421587

Cited by 5 publications

(4 citation statements)

References 1 publication

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“…Traditionally, the gain of a microstrip antenna is improved by constituting an array of multiple patch elements [4–10, 16, 17]. In doing so, theoretically, the number of patches should be doubled to enhance the antenna gain by about 3 dB [1].…”

Section: Introductionmentioning

confidence: 99%

“…In addition, in both [9] and [10], the fine patterns of the feeding transmission lines (TLs) degrade the fabrication tolerance when conventional printed circuit board (PCB) etching technique is applied [1]. An alternative method to simultaneously boost the microstrip antenna gain and bandwidth is to employ aperture coupling feeding scheme together with multi‐layer technology [3, 16, 18, 19]. However, this approach needs micro‐machining and more sophisticated fabrication technologies which ultimately increases fabrication complexities and cost, especially at high frequency antenna designs.…”

Section: Introductionmentioning

confidence: 99%

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Improvement of microstrip patch antenna gain and bandwidth at 60 GHz and X bands for wireless applications

Rabbani

Ghafouri‐Shiraz

2016

IET Microwaves, Antennas & Propagation

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A method has been proposed to simultaneously enhance the gain (14 dB), bandwidth (BW) (12.84% of the operating central frequency) and efficiency (94%) of a microstrip patch antenna. The antennas have been designed based on the patch size improvement technique to improve the fabrication tolerance. The designed prototypes have been fabricated by conventional low cost printed circuit board etching method and tested at X‐band (8–12 GHz) and 60 GHz band (57–66 GHz) frequencies. Antennas’ overall performance is maintained across their operating frequency range. The tested antennas for 60 GHz band convince the requirements for multi‐gigabits/s data rate wireless local area network and wireless personal area network applications recommended by IEEE 802.11ad and IEEE 802.15.3c standards. In all cases the simulation and the measured results are in good agreement.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Improvement of microstrip patch antenna gain and bandwidth at 60 GHz and X bands for wireless applications

Rabbani

Ghafouri‐Shiraz

2016

IET Microwaves, Antennas & Propagation

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“…In the frequency band of 60 GHz, some antennas are combined with IC technology. For example, the low-loss Low Temperature Co-Fired Ceramic (LTCC) has been utilized in wide-band 60 GHz chip antenna and it enables better radiation effectiveness compared with the patch antenna integrated into PCB [ 7 ]. A kind of virtual annular antenna has been proposed for use on CMOS IC technology with the achievement of a radiation efficiency of 90% and a gain of 1.43 dBi at about 60 GHz [ 8 ].…”

Section: Introductionmentioning

confidence: 99%

Compact Design of Annular-Microstrip-Fed mmW Antenna Arrays

Lin

Wang³

et al. 2021

Sensors

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In this paper, a series of four novel microstrip antenna array designs based on different annular-microstrip feeding lines at 60-GHz millimeter wave (mmW) band are proposed, aiming at the potential usage of the mmW coverage antenna with multi-directional property. As the feeding network, the annular contour microstrip lines are employed to connect the patch units so as to form a more compact array. Our first design is to use an outer contour annular microstrip line to connect four-direction linear arrays composed of 1 × 3 rectangular patches, thus the gain of 8.4 dBi and bandwidth of over 300 MHz are obtained. Our second design is to apply the two-direction pitchfork-shaped array each made up of two same linear arrays as the above, therefore the gain of 9.65 dBi and bandwidth of around 250 MHz are achieved. Our third design is to employ dual (inner and outer contour) annular-microstrip feeding lines to interconnect the above four-direction linear arrays, while our fourth design is to bring bridged annular-microstrip feeding lines, both of which can realize the goal of multi-directional radiation characteristic and higher gain of over 10 dBi.

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“…In [5], it has been computed that 13.7 dBi antenna gain is desirable for a reliable 60 GHz wireless link up to 10 m with an ideal transmitted output power of 0 dBm whereas an antenna gain of 19.7 dBi is sufficient for 20 m radio link. In order to meet the requirement of such high antenna gain for 60 GHz band applications, several planar antenna types have been reported in the recent years [4,5,[11][12][13][14][15][16][17][18][19][20][21][22][23]. However, as compared to the other candidate antennas for 60 GHz band, frequency selective surface (FSS) antenna is practically less explored partially because in the traditional way a very large FSS array (also called semi-infinite FSS [24]) is required for substantial antenna gain improvement which may not be practical for compact 60 GHz band devices.…”

Section: Introductionmentioning

confidence: 99%

Dual‐layer partially reflective surface antennas based on extended size unit cells for 60 GHz band WLAN/WPAN

Rabbani

Ghafouri‐Shiraz

2018

IET Microwaves, Antennas & Propagation

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In this study, planar dual‐layer partially reflective surface, also known as frequency selective surface (FSS), antennas have been presented for 60 GHz band (57.24–65.88 GHz) wireless local area network (WLAN) and wireless personal area network (WPAN) applications. The FSS is excited through a microstrip patch antenna array of two elements designed at 63.72 GHz with return loss (S11) bandwidth and gain of 5.55 GHz and 13.2 dBi, respectively. Both the FSS unit cell and the feeding patch elements are set to be the same and they are designed based on the patch antenna size improvement method to convince the fabrication limitations imposed by the conventional printed circuit board etching process. Then three double layers FSS antennas have been designed with 2‐elements, 12‐elements and 24‐elements in each FSS layer and measured gains of 15.6, 19.1 and 19.75 dBi, respectively, are achieved. It has also been found that when more layers and number of FSS elements are employed to improve the antenna gain, the overall S11 and gain bandwidth is reduced. In all the cases the measured results agreed well with the simulated results.

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A wideband 60GHz chip antenna

Cited by 5 publications

References 1 publication

Improvement of microstrip patch antenna gain and bandwidth at 60 GHz and X bands for wireless applications

Improvement of microstrip patch antenna gain and bandwidth at 60 GHz and X bands for wireless applications

Compact Design of Annular-Microstrip-Fed mmW Antenna Arrays

Dual‐layer partially reflective surface antennas based on extended size unit cells for 60 GHz band WLAN/WPAN

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