K. Bharath Kumar

A design of SIW filters for RADAR and 5G applications

This paper presents filter design using Substrate Integrated Waveguide (SIW) technology with Coplanar Waveguide (CPW) as a transmission path. Which is suitable for Millimetre wave applications like RADAR, 5G, Ect, In this design two resonance peaks are available; first one occurs at 49.9GHz with reflection coefficient −31dB and insertion loss is −0.5dB and second resonance occurs at 60.4GHz with a reflection coefficient of −52dB with insertion loss −0.9dB. Both resonances are given greater than 1GHz bandwidth. This is required for millimetre applications.

V-Band SIW Wideband Band-Pass Filters for mm-Wave Applications

This paper presents V-band band-pass filter, which is designed with high bandwidth and compact size by using planar structure technology, i.e., substrate integrated waveguide technology (SIW). Grounded coplanar waveguide (GCPW) is used as a transmission connecting path. This V-band filter design by using RT duriod 5880 substrate material with a height of 0.508 mm and er as 2.2. Filter dimensions are 6.8 * 3.5 * 0.508 mm3. Due to its dimensions and bandwidth, this filter is more suitable to develop 59–64 GHz RADAR applications. At 60 GHz, this V-band band-pass filter gives reflection coefficient of −54.156 dB, insertion loss of −0.25 dB and Voltage Standing Ratio of 1.004. At 60 GHz, this band-pass filter gives a quality factor of 1124 with surface currents of 43.1 dB (1 A/m). This structure is more suitable to design RADAR and %G components at millimeter wave frequency range.

Multiband E-shape SIW antenna for mm-wave applications

This design of Antenna used for multiband Millimetre (mm) wave applications. This antenna designed using Substrate Integrated Waveguide (SIW) technology. In this design six band of frequencies are realizable for wideband. First band obtain between 38.42 GHz and 39.09 GHz with reflection coefficient of −28 dB, Second one obtain between 42.43 GHz and 43.42 GHz with reflection coefficient of −11 dB, Third one obtain between 58.55GHz and 61.12 GHz with reflection coefficient of −12.5 dB, Fourth one obtain between 72.01 GHz and 73.51 GHz with reflection coefficient of −34.5 dB, Fifth one obtain between 83.44 GHz and 84.68 GHz with reflection coefficient of −11 dB and six one obtain between 100.66 GHz and 103.23 GHz with reflection coefficient of −30 dB which all bands got good bandwidth and it is more suitable for mm wave applications.

Wideband SIW filter for mm-wave applications

This article presents the design of wideband filter design using Substrate Integrated Waveguide (SIW) technology for Millimeter (mm) wave applications. Coplanar Waveguide (CPW) is used as transmission path to connect the SIW. This design mainly concentrated on wide bandwidth and compact Size which is suitable for Millimeter wave applications like RADAR, 5G, etc. From 41.3GHz of bandwidth and Max resonance peak occurs around at 60GHz with reflection coefficient −64dB and insertion loss is −1dB. Due to size and availability of bandwidth this device is most suitable for millimeter applications.

SIW hydride Coupler for mm-Wave applications

This article presents the design of V-band hybrid coupler using new technology i.e. Substrate Integrated Waveguide (SIW) technology. This technology gives suitable components for Millimetre (mm) wave applications. In this hybrid coupler design, the level of reflection and isolation below −20dB occupy more than 2GHz of the bandwidth. The maximum peak occurs at 60GHz with a reflection coefficient of −36.34 dB. The insertion loss is −0.7dB throughout the band. The coupling value is −11 dB.