Skip to main content
eScholarship
Open Access Publications from the University of California

UCLA

UCLA Electronic Theses and Dissertations bannerUCLA

Dual-band Composite Right/Left Hand Substrate Integrated Waveguide Leaky Wave Antenna Phased Array Design

  • Author(s): Tanabe, Jordan Masao;
  • Advisor(s): Itoh, Tatsuo;
  • et al.
Abstract

Today's demand for advanced wireless communication technology is increasing and is creating a necessity to develop multiband technologies. This thesis will cover a dual-band composite right/left hand (CRLH) substrate integrated waveguide (SIW) leaky wave antenna (LWA) phased array design to operate at C-band and X-band frequencies. The proposed design has the capability of steering a pencil beam in 2 dimensions, electronically in elevation and by phase in azimuth. The design utilizes the unique properties of CRLH metamaterial designs in SIW technology to provide a single feed input antenna that is capable of producing back-fire radiation patterns at both frequency bands. The proposed design utilizes the radiating and guiding properties of CRLH transmission lines to enable antenna elements to be spaced lambda/2 from each element, where lambda is the wavelength of a designated design frequency. This allows the antenna to provide maximum scanning capability in the azimuth direction while also maintaining the highest directivity possible. The antenna design works as expected at C-band frequencies but due to some fabrication issues the performance at X-band frequencies are not ideal. For both frequency bands the 2-D scanning capability is still observed.

This thesis will cover the design steps and considerations during the design process, starting with the unit cell design, transforming it into a 1-D single band LWA, and placing the 1-D antennas into an array to create the proposed dual-band antenna. Simulation and measured results are compared and shown where applicable and future works for follow on design work is covered in the last chapter.

Main Content
For improved accessibility of PDF content, download the file to your device.
Current View