# A 16 × 16 45° Slant-Polarized Gapwaveguide Phased Array With 65-dBm EIRP at 28 GHz Artikel i vetenskaplig tidskrift, 2023

A high equivalent isotropic radiated power (EIRP) active phased array antenna is proposed for fifth-generation (5G) communication systems at 28 GHz. The numerical design, measurements of a fabricated prototype, and performance analysis are presented. The antenna design is based on the gapwaveguide technology and consists of $16 \times 16$ single 45° slant-polarized elements. The proposed design uses a low complexity printed circuit board (PCB) structure with only six layers, i.e., a half of the existing wideband solutions. The array antenna incorporates up/downconverter integrated circuits (UDCs) and $1 \times 4$ transceiver beamformer integrated circuits (BFICs). Moreover, a compact and highly efficient transition at the end of each channel of the BFICs has been designed to interconnect the antenna elements with the PCB. The antenna's front-end loss, which includes the feed line, mismatch, and ohmic losses, is only 1.3 dB. The array covers the scanning range of ±60° in the azimuth plane and ±10° in the elevation plane. The $S_{11} < -10$ dB frequency bandwidth is from 26.5 to 29.5 GHz. The maximum EIRP of the antenna is 65.5 dBm at saturation point. The presented design offers a compact, robust, and low-loss performance solution meeting the high transmission power requirements of 5G applications.

transceiver

28 GHz

fifth-generation (5G)

phased array

millimeter wave (mmWave)

gapwaveguide-based antennas

## Författare

### Alireza Bagheri

Gapwaves AB

Universiteit Twente

Gapwaves AB

Gapwaves AB

Gapwaves AB

Gapwaves AB

Gapwaves AB

### Andres Alayon Glazunov

Gapwaves AB

Chalmers, Elektroteknik, Kommunikation, Antenner och Optiska Nätverk

#### IEEE Transactions on Antennas and Propagation

0018-926X (ISSN)

Vol. 71 2 1319-1329

### Ämneskategorier

Telekommunikation

Signalbehandling

Annan elektroteknik och elektronik

### DOI

10.1109/TAP.2022.3227718

2023-02-27