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Content Provider | IET Digital Library |
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Author | Frank, M. Lurz, F. Weigel, R. Koelpin, A. |
Abstract | This Letter presents the design of a low-profile and low-cost transmitarray antenna operating at 122 GHz. The transmitarray design is based on unit-cells with 1-bit phase resolution. A single RO4350B substrate layer is used to form the unit-cells resulting in a total thickness of 0.326 mm. A wideband shift in the transmission phase of 180 ° is generated by rotating one metal layer of the unit-cell by 180 ° . The simulation of the transmitarray with 30 × 30 elements and a feed distance of 35 mm shows a maximum directivity of 28 dBi at 122 GHz. Steering angles of 0 ° and 15 ° are investigated. Measurements of the fabricated transmitarrays are performed with an open waveguide and a package antenna as feed showing similar results but slightly different maximum relative gain values of 11.8 and 9.5 dB for the 0 ° version. The measured main beam directions are in good agreement with the simulations and the design values. |
Starting Page | 1293 |
Ending Page | 1295 |
Page Count | 3 |
ISSN | 00135194 |
Volume Number | 56 |
e-ISSN | 1350911X |
Issue Number | Issue 24, Nov (2020) |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/el/56/24 |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/el.2020.2088 |
Journal | Electronics Letters |
Publisher Date | 2020-11-03 |
Access Restriction | Open |
Rights Holder | © The Institution of Engineering and Technology |
Subject Keyword | 1-bit Phase Resolution Antenna Array Antenna Radiation Pattern Broadband Antenna Frequency 122.0 GHz Low-cost Transmitarray Antenna Microstrip Antenna Array Microwave Antenna Array Noise Figure 11.8 DB Noise Figure 9.5 DB Single RO4350B Substrate Layer Size 0.326 Mm Size 35.0 Mm Steering Angles Transmission Phase Transmitarray Design Transmitting Antenna Unit-cell |
Content Type | Text |
Resource Type | Article |
Subject | Electrical and Electronic Engineering |
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