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Proceedings ArticleDOI

Design of dual-frequency HMSIW cavity antenna for Ka band application

TL;DR: In this article, a half-mode substrate integrated waveguide (HMSIW) cavity based antenna is presented for dual-frequency application in the Ka band (26-40 GHz) and the proposed antenna resonates at 26 GHz and 29 GHz while maintaining a compact design configuration which makes it suitable for application in LMDS frequency band.
Abstract: In this paper, a novel design of half-mode substrate integrated waveguide (HMSIW) cavity based antenna is presented for dual-frequency application in Ka band (26–40 GHz). Two HMSIW cavities are placed side by side and are excited through the help of inductive coupling window followed by a section of HMSIW line. As a result, the cavities are excited at TE 110 HM mode and the open end dielectric aperture of the HMSIW cavity starts radiating into free space. The two HMSIW line are connected to the input SIW feeding line with the help of a SIW to HMSIW power divider. The proposed antenna resonates at 26 GHz and 29 GHz while maintaining a compact design configuration which makes it suitable for application in LMDS frequency band.
Citations
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Proceedings ArticleDOI
07 May 2021
TL;DR: In this article, two low-profile right-handed circularly polarized (RHCP) antennas operating at 11 GHz based on half-mode substrate integrated waveguide (HMSIW) and quarter-mode SLIW were presented.
Abstract: This paper presents two low-profile right-handed circularly polarized (RHCP) antennas operating at 11GHz based on half-mode substrate integrated waveguide (HMSIW) and quarter-mode substrate integrated waveguide (QMSIW). Firstly, a substrate integrated waveguide (SIW) resonant cavity operating at 11 GHz is designed. By cutting the SIW cavity in half, a HMSIW cavity with size of 1.59λg × 1.07λg is obtained. Next, a half-octagon slot is etched on the top surface of the HMSIW cavity. Then, two square patches are placed in the slot, which gives the HMSIW CP antenna. Finally, by bisecting the HMSIW antenna directly, QMSIW antenna design with one square patch is completed, which has size of 0.86λg × 1.07λg. The proposed HMSIW and QMSIW antennas have 1.9% impedance bandwidth at 11GHz. Both antennas can achieve 0.14 GHz (1.27%) 3-dB AR bandwidth. The gain of the HMSIW and QMSIW antenna are 5.56 dBi and 5.52 dBi respectively. Furthermore, the proposed antennas can radiate RHCP beamwidth of 20°. Compared with the traditional SIW antenna, HMSIW and QMSIW antennas can reduce the size nearly 50% and 75% respectively, which are good candidates for miniaturization techniques.

1 citations

References
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Journal ArticleDOI
TL;DR: In this article, the authors provide an overview of the recent advances in the modelling, design and technological implementation of SIW structures and components, as well as their application in the development of circuits and components operating in the microwave and millimetre wave region.
Abstract: Substrate-integrated waveguide (SIW) technology represents an emerging and very promising candidate for the development of circuits and components operating in the microwave and millimetre-wave region. SIW structures are generally fabricated by using two rows of conducting cylinders or slots embedded in a dielectric substrate that connects two parallel metal plates, and permit the implementation of classical rectangular waveguide components in planar form, along with printed circuitry, active devices and antennas. This study aims to provide an overview of the recent advances in the modelling, design and technological implementation of SIW structures and components.

1,129 citations


"Design of dual-frequency HMSIW cavi..." refers background in this paper

  • ...In recent years, substrate integrated waveguide (SIW) technology has gained much interest among the researchers for using in microwave and millimeter wave applications [1], [2]....

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Journal ArticleDOI
TL;DR: In this paper, the authors proposed a quarter-mode substrate integrated waveguide (QMSIW) which is the quadrant sector of a square waveguide resonator and investigated its performance with TE101 and TE202 modes.
Abstract: A quarter-mode substrate integrated waveguide (QMSIW) which is the quadrant sector of a square waveguide resonator is proposed and investigated in this paper. The QMSIW is realized by bisecting the half-mode substrate integrated waveguide (HMSIW) into two parts along the fictitious quasi-magnetic wall when it operates with TE101 and TE202 modes as the way bisecting the substrate integrated waveguide (SIW) to HMSIW. The QMSIW can almost preserve the field distribution of original SIW and leaky wave is achieved from the dielectric aperture of the QMSIW. When the feeding port is placed at one corner of the QMSIW, a linearly polarized radiation is obtained when the QMSIW resonates in TE101QM mode, and when the QMSIW resonates in TE202QM mode, a circularly polarized (CP) wave is achieved. An antenna is designed, fabricated, and measured based on the proposed QMSIW. The measurement results match with the simulation results very well.

197 citations


"Design of dual-frequency HMSIW cavi..." refers background or methods in this paper

  • ...The dimensions of the HMSIW cavity can be derived following the procedure described in [5]....

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  • ...The HMSIW Cavity 1 (Lc1 X WHM) and 2 (Lc2 X WHM) are excited at TE110 HM [5] mode at 26 GHz and 29 GHz as shown in the magnitude of electric field plot in Fig....

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  • ...Also HMSIW based antennas are proposed in [4], [5], [6]....

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Journal ArticleDOI
TL;DR: In this paper, a resonant series slot array antenna for 45° linear polarization (LP) is described, where sixteen radiating slots, tilted at an angle of 45°, are separated by one-half guided wavelength due to use of the alternating inductive and capacitive load slot pairs.
Abstract: In this letter, a new type of resonant series slot array antenna for Ka-band for 45° linear polarization (LP) is described. Sixteen radiating slots, tilted at an angle of 45°, are separated by one-half guided wavelength due to use of the alternating inductive and capacitive load slot pairs. These alternating reactance slot pairs allow this novel antenna to achieve impedance matching, uniform field excitation, and suppression of grating lobes simultaneously. The antenna is designed and fabricated using substrate integrated waveguide (SIW) technology to overcome the drawbacks associated with conventional metallic waveguide antennas. The measured impedance bandwidth, maximum gain, and sidelobe levels are 2.7%, 15.64 dBi, and 15.36 dB, respectively, at the design frequency. The measured data are in agreement with the theoretical calculations and demonstrate the validity of the design technique for the proposed antenna structure.

59 citations


"Design of dual-frequency HMSIW cavi..." refers background in this paper

  • ...In recent years, substrate integrated waveguide (SIW) technology has gained much interest among the researchers for using in microwave and millimeter wave applications [1], [2]....

    [...]

Journal ArticleDOI
TL;DR: In this article, a low-loss planar spatial power-combining architecture based on half model substrate integrated waveguide (HMSIW) is proposed and studied, which is realized by transition between a HMSIW and parallel multiport planar microstrip lines.
Abstract: In this letter, a simple low-loss planar spatial power-combining architecture based on half model substrate integrated waveguide (HMSIW) is proposed and studied. The power-combining structure is realized by transition between a HMSIW and parallel multiport planar microstrip lines. The power combiner is simulated and measured at 34.5-36.5 GHz. Measured results show a good agreement with simulation and a combining efficiency of 82% is achieved at 35 GHz.

54 citations


"Design of dual-frequency HMSIW cavi..." refers methods in this paper

  • ...Recently, a miniaturization technique named Half-mode SIW (HMSIW) is proposed which reduces the size of SIW based circuits by almost 50% [3]....

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Journal ArticleDOI
TL;DR: In this article, a linear polarized cavity-backed antenna with a half-mode substrate integrated waveguide (HMSIW) technique is proposed to create a radiating aperture rather than minimizing the structure.
Abstract: In this letter, a novel scheme for linear polarized cavity-backed antennas is introduced. In this design, for the first time, half-mode substrate integrated waveguide (HMSIW) technique is used to create a radiating aperture rather than minimizing the structure. The proposed antenna has the advantages of compactness, low profile, light weight, low fabrication cost, and easy integration with planar circuits. It also can be easily implemented by using only a single layer of printed circuit board (PCB). The proposed antenna is numerically investigated using HFSS. A sample antenna is fabricated, and its radiation characteristics are measured. The radiation patterns of the proposed antenna are also calculated based on the aperture antennas theory. Good agreement among calculated, simulation, and measured results is observed. The measured results show that the proposed antenna has also the advantages of conventional cavity-backed antennas including high gain, low cross-polarization level (CPL), and high front-to-back ratio (FTBR).

36 citations


"Design of dual-frequency HMSIW cavi..." refers background in this paper

  • ...However, the fringing field at the open end of the cavity helps to excite the open edge dielectric aperture and as a result, it starts to radiate into free space [4]....

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  • ...Also HMSIW based antennas are proposed in [4], [5], [6]....

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