28 GHz Antenna-Array-Integrated Module with Built-In Filters in LTCC Substrate
- Resource Type
- Conference
- Authors
- Sudo, Kaoru; Onaka, Kengo; Hirose, Keiichi; Hasegawa, Yoshiaki; Komura, Ryo; Yamada, Yoshiki; Hiratsuka, Toshiro; Koshino, Masayoshi; Hayafuji, Hisao
- Source
- 2019 IEEE Asia-Pacific Microwave Conference (APMC) Asia-Pacific Microwave Conference (APMC), 2019 IEEE. :1041-1043 Dec, 2019
- Subject
- Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Engineered Materials, Dielectrics and Plasmas
Fields, Waves and Electromagnetics
Photonics and Electrooptics
Power harmonic filters
Antenna measurements
Harmonic analysis
Substrates
Patch antennas
Antenna arrays
low pass filter
LTCC
array antenna
millimeter wave
harmonics
differential feeding
- Language
This paper presents an Antenna-Array-Integrated Module (AiM) with a low pass filter (LPF) in LTCC multilayered substrate with low loss, high attenuation and small size in 28 GHz band. A differential feeding method for each patch antenna is employed to improve symmetricity of directivity for beam forming. The insertion loss of the LPF is less than 0.5 dB and the spurious emission in 2 nd harmonic band of Band-n257 was suppressed by over 20 dB thanks to putting the LPF in front of the antenna. The symmetricity of the directivity for beam forming was improved owing to the differential feeding.