PMID- 37430754
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20230711
LR  - 20230718
IS  - 1424-8220 (Electronic)
IS  - 1424-8220 (Linking)
VI  - 23
IP  - 10
DP  - 2023 May 17
TI  - X-band MMICs for a Low-Cost Radar Transmit/Receive Module in 250 nm GaN HEMT 
      Technology.
LID - 10.3390/s23104840 [doi]
LID - 4840
AB  - This paper describes Monolithic Microwave Integrated Circuits (MMICs) for an 
      X-band radar transceiver front-end implemented in 0.25 mum GaN High Electron 
      Mobility Transistor (HEMT) technology. Two versions of single pole double throw 
      (SPDT) T/R switches are introduced to realize a fully GaN-based transmit/receive 
      module (TRM), each of which achieves an insertion loss of 1.21 dB and 0.66 dB at 
      9 GHz, IP(1dB) higher than 46.3 dBm and 44.7 dBm, respectively. Therefore, it can 
      substitute a lossy circulator and limiter used for a conventional GaAs receiver. 
      A driving amplifier (DA), a high-power amplifier (HPA), and a robust low-noise 
      amplifier (LNA) are also designed and verified for a low-cost X-band 
      transmit-receive module (TRM). For the transmitting path, the implemented DA 
      achieves a saturated output power (P(sat)) of 38.0 dBm and output 1-dB 
      compression (OP(1dB)) of 25.84 dBm. The HPA reaches a P(sat) of 43.0 dBm and 
      power-added efficiency (PAE) of 35.6%. For the receiving path, the fabricated LNA 
      measures a small-signal gain of 34.9 dB and a noise figure of 2.56 dB, and it can 
      endure higher than 38 dBm input power in the measurement. The presented GaN MMICs 
      can be useful in implementing a cost-effective TRM for Active Electronically 
      Scanned Array (AESA) radar systems at X-band.
FAU - Lee, Hyeonseok
AU  - Lee H
AUID- ORCID: 0000-0002-7884-5391
AD  - Division of Electronics and Electrical Engineering, Dongguk University, Seoul 
      04620, Republic of Korea.
FAU - Park, Hyeong-Geun
AU  - Park HG
AD  - Division of Electronics and Electrical Engineering, Dongguk University, Seoul 
      04620, Republic of Korea.
FAU - Le, Van-Du
AU  - Le VD
AD  - Division of Electronics and Electrical Engineering, Dongguk University, Seoul 
      04620, Republic of Korea.
FAU - Nguyen, Van-Phu
AU  - Nguyen VP
AD  - Division of Electronics and Electrical Engineering, Dongguk University, Seoul 
      04620, Republic of Korea.
FAU - Song, Jeong-Moon
AU  - Song JM
AD  - Division of Electronics and Electrical Engineering, Dongguk University, Seoul 
      04620, Republic of Korea.
FAU - Lee, Bok-Hyung
AU  - Lee BH
AD  - Yongin Research Institute, Hanwha Systems, Yongin-si 17121, Republic of Korea.
FAU - Park, Jung-Dong
AU  - Park JD
AUID- ORCID: 0000-0003-4733-2160
AD  - Division of Electronics and Electrical Engineering, Dongguk University, Seoul 
      04620, Republic of Korea.
LA  - eng
GR  - No. C210042/This work was supported by a grant-in-aid of KRIT and HANWHA SYSTEMS 
      through the Weapon Systems Parts Localization R&D program/
GR  - N/A/A grant-in-aid of HANWHA SYSTEMS/
PT  - Journal Article
DEP - 20230517
PL  - Switzerland
TA  - Sensors (Basel)
JT  - Sensors (Basel, Switzerland)
JID - 101204366
SB  - IM
PMC - PMC10223916
OTO - NOTNLM
OT  - T/R switch
OT  - driving amplifier (DA)
OT  - gallium nitride (GaN)
OT  - high-power amplifier (HPA)
OT  - low-noise amplifier (LNA)
OT  - transceiver
COIS- The authors declare no conflict of interest. The funders had no role in the 
      design of the study; in the collection, analyses, or interpretation of data; in 
      the writing of the manuscript, or in the decision to publish the results.
EDAT- 2023/07/11 06:42
MHDA- 2023/07/11 06:43
PMCR- 2023/05/17
CRDT- 2023/07/11 01:02
PHST- 2023/04/18 00:00 [received]
PHST- 2023/05/08 00:00 [revised]
PHST- 2023/05/12 00:00 [accepted]
PHST- 2023/07/11 06:43 [medline]
PHST- 2023/07/11 06:42 [pubmed]
PHST- 2023/07/11 01:02 [entrez]
PHST- 2023/05/17 00:00 [pmc-release]
AID - s23104840 [pii]
AID - sensors-23-04840 [pii]
AID - 10.3390/s23104840 [doi]
PST - epublish
SO  - Sensors (Basel). 2023 May 17;23(10):4840. doi: 10.3390/s23104840.