Summary
International Symposium on Antennas and Propagation
2005
Session Number:2POS-D
Session:
Number:2POS-D-5
A DUAL-BAND POWER AMPLIFIER MODULE FOR KPCS/WCDMA APPLICATIONS ON A MULTILAYER LTCC SUBSTRATE
Dongsu Kim, Yong-Gil Shin, Joshua Yoo, Jae-Hak Lee, Myong-Jae Yoo, Woo-Sung Lee,
pp.-
Publication Date:2005/11/3
Online ISSN:2188-5079
Summary:
A compact power amplifier module (PAM) for Korean-PCS (KPCS)/WCDMA dual-band applications based on a multilayer low-temperature co-fired ceramic (LTCC) substrate is presented. All passive components which are required for the PAM are fully embedded in the substrate. The measured result shows that the PAM delivers a power of 28 dBm with a power added efficiency (PAE) of more than 30 % at KPCS band. The adjacent-channel power ratio (ACPR) at 1.25-MHz and 2.25-MHz offset is -44dBc/30kHz and -60dBc/30kHz, respectively, at 28-dBm output power. Also, the PAM for WCDMA band exhibits an output power of 27 dBm and 32-dB gain at 1.95 GHz with a 3.4-V supply. The adjacent-channel leakage ratio (ACLR) at 5-MHz and 10-MHz offset is -37.5dBc/3.84MHz and -48dBc/3.84MHz, respectively. The overall size of the LTCC substrate is only 6 mm × 4 mm × 0.8 mm.